@ Astros
133-103
@ Nationals
121-113
Playoffs
3-4
VS EXPECTED
Astros +10.4
Avg Runs
4.3-3.9
Most Recent Winner
Astros 9-1
Head-To-Head Margin (Max Last 150 Matches)
| Date | Matchup | Result | Winner | Model Projection | Stage |
|---|---|---|---|---|---|
| Jul 30, 2025 | 1–9 | Houston Astros +8 | Houston Astros +1.3 | Regular | |
| Jul 29, 2025 | 4–7 | Houston Astros +3 | Houston Astros +1.3 | Regular | |
| Jul 28, 2025 | 2–1 | Washington Nationals +1 | Houston Astros +1.3 | Regular | |
| Apr 21, 2024 | 0–6 | Washington Nationals +6 | Houston Astros +0.7 | Regular | |
| Apr 20, 2024 | 4–5 | Washington Nationals +1 | Houston Astros +0.7 | Regular | |
| Apr 19, 2024 | 5–3 | Houston Astros +2 | Houston Astros +0.7 | Regular | |
| Jun 15, 2023 | 4–1 | Washington Nationals +3 | Houston Astros +1.8 | Regular | |
| Jun 14, 2023 | 4–5 | Houston Astros +1 | Houston Astros +1.8 | Regular | |
| Jun 13, 2023 | 1–6 | Houston Astros +5 | Houston Astros +1.8 | Regular | |
| May 15, 2022 | 8–0 | Houston Astros +8 | Houston Astros +1.0 | Regular | |
| May 14, 2022 | 6–13 | Washington Nationals +7 | Houston Astros +1.0 | Regular | |
| May 13, 2022 | 6–1 | Houston Astros +5 | Houston Astros +1.0 | Regular | |
| Oct 30, 2019 | 6–2 | Washington Nationals +4 | Houston Astros +0.9 | Playoffs | |
| Oct 29, 2019 | 7–2 | Washington Nationals +5 | Houston Astros +0.9 | Playoffs | |
| Oct 27, 2019 | 7–1 | Houston Astros +6 | Houston Astros +0.4 | Playoffs | |
| Oct 26, 2019 | 8–1 | Houston Astros +7 | Houston Astros +0.4 | Playoffs | |
| Oct 25, 2019 | 4–1 | Houston Astros +3 | Houston Astros +0.3 | Playoffs | |
| Oct 23, 2019 | 12–3 | Washington Nationals +9 | Houston Astros +0.9 | Playoffs | |
| Oct 22, 2019 | 5–4 | Washington Nationals +1 | Houston Astros +0.9 | Playoffs | |
| Aug 24, 2017 | 5–4 | Washington Nationals +1 | Houston Astros +0.1 | Regular | |
| Aug 23, 2017 | 1–6 | Houston Astros +5 | Houston Astros +0.1 | Regular | |
| Aug 22, 2017 | 4–3 | Washington Nationals +1 | Houston Astros +0.1 | Regular | |
| Jun 18, 2014 | 5–6 | Washington Nationals +1 | Washington Nationals +1.4 | Regular | |
| Jun 17, 2014 | 5–6 | Washington Nationals +1 | Washington Nationals +1.4 | Regular | |
| Apr 30, 2014 | 7–0 | Washington Nationals +7 | Washington Nationals +1.1 | Regular | |
| Apr 29, 2014 | 4–3 | Washington Nationals +1 | Washington Nationals +1.0 | Regular | |
| Aug 9, 2012 | 5–0 | Washington Nationals +5 | Washington Nationals +1.0 | Regular | |
| Aug 8, 2012 | 4–3 | Washington Nationals +1 | Washington Nationals +1.0 | Regular | |
| Aug 7, 2012 | 3–2 | Washington Nationals +1 | Washington Nationals +1.0 | Regular | |
| Aug 6, 2012 | 5–4 | Washington Nationals +1 | Washington Nationals +1.0 | Regular | |
| Apr 19, 2012 | 11–4 | Houston Astros +7 | Washington Nationals +0.9 | Regular | |
| Apr 18, 2012 | 2–3 | Washington Nationals +1 | Washington Nationals +0.9 | Regular | |
| Apr 17, 2012 | 0–1 | Washington Nationals +1 | Washington Nationals +0.9 | Regular | |
| Apr 16, 2012 | 3–6 | Washington Nationals +3 | Washington Nationals +0.8 | Regular | |
| Sep 11, 2011 | 2–8 | Washington Nationals +6 | Washington Nationals +0.5 | Regular | |
| Sep 10, 2011 | 9–3 | Houston Astros +6 | Washington Nationals +0.6 | Regular | |
| Sep 9, 2011 | 3–4 | Washington Nationals +1 | Washington Nationals +0.5 | Regular | |
| Jul 20, 2011 | 2–3 | Houston Astros +1 | Washington Nationals +0.1 | Regular | |
| Jul 19, 2011 | 6–7 | Houston Astros +1 | Washington Nationals +0.1 | Regular | |
| Jul 18, 2011 | 5–2 | Washington Nationals +3 | Washington Nationals +0.1 | Regular | |
| Sep 23, 2010 | 2–7 | Washington Nationals +5 | Houston Astros +0.4 | Regular | |
| Sep 22, 2010 | 3–4 | Washington Nationals +1 | Houston Astros +0.4 | Regular | |
| Sep 21, 2010 | 4–8 | Washington Nationals +4 | Houston Astros +0.5 | Regular | |
| Sep 20, 2010 | 8–2 | Houston Astros +6 | Houston Astros +0.4 | Regular | |
| Jun 3, 2010 | 4–6 | Houston Astros +2 | Houston Astros +0.4 | Regular | |
| Jun 2, 2010 | 1–5 | Houston Astros +4 | Houston Astros +0.4 | Regular | |
| Jun 1, 2010 | 7–8 | Houston Astros +1 | Houston Astros +0.4 | Regular | |
| May 31, 2010 | 14–4 | Washington Nationals +10 | Houston Astros +0.4 | Regular | |
| Jul 12, 2009 | 0–5 | Houston Astros +5 | Houston Astros +1.3 | Regular | |
| Jul 11, 2009 | 13–2 | Washington Nationals +11 | Houston Astros +1.3 | Regular | |
| Jul 10, 2009 | 5–6 | Houston Astros +1 | Houston Astros +1.3 | Regular | |
| Jul 9, 2009 | 4–9 | Houston Astros +5 | Houston Astros +1.3 | Regular | |
| May 5, 2009 | 10–11 | Washington Nationals +1 | Houston Astros +0.5 | Regular | |
| May 4, 2009 | 4–9 | Washington Nationals +5 | Houston Astros +0.6 | Regular | |
| Jul 13, 2008 | 5–0 | Houston Astros +5 | Houston Astros +0.1 | Regular | |
| Jul 12, 2008 | 6–4 | Houston Astros +2 | Houston Astros +0.1 | Regular | |
| Jul 11, 2008 | 0–10 | Washington Nationals +10 | Houston Astros +0.1 | Regular | |
| May 8, 2008 | 8–3 | Washington Nationals +5 | Houston Astros +0.5 | Regular | |
| May 7, 2008 | 3–4 | Houston Astros +1 | Houston Astros +0.5 | Regular | |
| May 6, 2008 | 5–6 | Houston Astros +1 | Houston Astros +0.4 | Regular | |
| Aug 23, 2007 | 7–6 | Washington Nationals +1 | Houston Astros +0.4 | Regular | |
| Aug 22, 2007 | 2–3 | Houston Astros +1 | Houston Astros +0.4 | Regular | |
| Aug 21, 2007 | 11–6 | Washington Nationals +5 | Houston Astros +0.4 | Regular | |
| Aug 20, 2007 | 7–0 | Washington Nationals +7 | Houston Astros +0.5 | Regular | |
| Jul 18, 2007 | 6–7 | Washington Nationals +1 | Houston Astros +0.1 | Regular | |
| Jul 17, 2007 | 4–2 | Houston Astros +2 | Houston Astros +0.1 | Regular | |
| Jul 16, 2007 | 3–4 | Washington Nationals +1 | Houston Astros +0.1 | Regular | |
| May 25, 2006 | 5–8 | Washington Nationals +3 | Houston Astros +0.4 | Regular | |
| May 24, 2006 | 1–5 | Washington Nationals +4 | Houston Astros +0.4 | Regular | |
| May 23, 2006 | 1–4 | Washington Nationals +3 | Houston Astros +0.4 | Regular | |
| May 22, 2006 | 10–3 | Houston Astros +7 | Houston Astros +0.4 | Regular | |
| Apr 10, 2006 | 4–5 | Houston Astros +1 | Houston Astros +0.9 | Regular | |
| Apr 9, 2006 | 3–7 | Houston Astros +4 | Houston Astros +0.8 | Regular | |
| Apr 8, 2006 | 12–8 | Washington Nationals +4 | Houston Astros +0.9 | Regular | |
| Apr 7, 2006 | 1–6 | Houston Astros +5 | Houston Astros +0.9 | Regular | |
| Aug 11, 2005 | 3–6 | Houston Astros +3 | Houston Astros +0.8 | Regular | |
| Aug 10, 2005 | 6–7 | Houston Astros +1 | Houston Astros +0.8 | Regular | |
| Aug 9, 2005 | 6–5 | Washington Nationals +1 | Houston Astros +0.8 | Regular | |
| Jul 24, 2005 | 4–1 | Houston Astros +3 | Houston Astros +0.1 | Regular | |
| Jul 23, 2005 | 2–4 | Washington Nationals +2 | Houston Astros +0.2 | Regular | |
| Jul 22, 2005 | 14–1 | Houston Astros +13 | Houston Astros +0.1 | Regular | |
| Jul 21, 2005 | 3–2 | Houston Astros +1 | Houston Astros +0.1 | Regular | |
| Aug 15, 2004 | 5–4 | Houston Astros +1 | Washington Nationals +0.1 | Regular | |
| Aug 14, 2004 | 3–8 | Washington Nationals +5 | Washington Nationals +0.0 | Regular | |
| Aug 13, 2004 | 5–6 | Washington Nationals +1 | Washington Nationals +0.0 | Regular | |
| Aug 8, 2004 | 5–2 | Washington Nationals +3 | Houston Astros +0.6 | Regular | |
| Aug 7, 2004 | 8–3 | Washington Nationals +5 | Houston Astros +0.6 | Regular | |
| Aug 6, 2004 | 0–4 | Houston Astros +4 | Houston Astros +0.6 | Regular | |
| Aug 10, 2003 | 2–8 | Houston Astros +6 | Houston Astros +0.5 | Regular | |
| Aug 9, 2003 | 3–1 | Washington Nationals +2 | Houston Astros +0.5 | Regular | |
| Aug 8, 2003 | 1–5 | Houston Astros +4 | Houston Astros +0.5 | Regular | |
| Apr 27, 2003 | 6–3 | Houston Astros +3 | Washington Nationals +0.1 | Regular | |
| Apr 26, 2003 | 2–3 | Washington Nationals +1 | Washington Nationals +0.1 | Regular | |
| Apr 25, 2003 | 2–10 | Washington Nationals +8 | Washington Nationals +0.0 | Regular | |
| Aug 4, 2002 | 5–4 | Houston Astros +1 | Houston Astros +0.3 | Regular | |
| Aug 3, 2002 | 5–3 | Houston Astros +2 | Houston Astros +0.3 | Regular | |
| Aug 2, 2002 | 1–3 | Washington Nationals +2 | Houston Astros +0.3 | Regular | |
| May 2, 2002 | 2–8 | Houston Astros +6 | Houston Astros +0.8 | Regular | |
| May 1, 2002 | 5–4 | Washington Nationals +1 | Houston Astros +0.8 | Regular | |
| Apr 30, 2002 | 5–1 | Washington Nationals +4 | Houston Astros +0.9 | Regular | |
| Aug 5, 2001 | 1–4 | Houston Astros +3 | Houston Astros +1.0 | Regular | |
| Aug 4, 2001 | 1–4 | Houston Astros +3 | Houston Astros +1.0 | Regular | |
| Aug 3, 2001 | 2–6 | Houston Astros +4 | Houston Astros +0.9 | Regular | |
| May 6, 2001 | 13–7 | Houston Astros +6 | Houston Astros +0.4 | Regular | |
| May 5, 2001 | 4–3 | Houston Astros +1 | Houston Astros +0.4 | Regular | |
| May 4, 2001 | 8–4 | Houston Astros +4 | Houston Astros +0.4 | Regular | |
| Aug 27, 2000 | 7–3 | Houston Astros +4 | Houston Astros +0.3 | Regular | |
| Aug 26, 2000 | 4–5 | Washington Nationals +1 | Houston Astros +0.4 | Regular | |
| Aug 25, 2000 | 3–1 | Houston Astros +2 | Houston Astros +0.3 | Regular | |
| Aug 6, 2000 | 1–8 | Houston Astros +7 | Houston Astros +0.6 | Regular | |
| Aug 5, 2000 | 10–9 | Washington Nationals +1 | Houston Astros +0.6 | Regular | |
| Aug 4, 2000 | 6–7 | Houston Astros +1 | Houston Astros +0.6 | Regular | |
| May 21, 2000 | 3–8 | Washington Nationals +5 | Houston Astros +0.3 | Regular | |
| May 20, 2000 | 7–8 | Washington Nationals +1 | Houston Astros +0.4 | Regular | |
| May 19, 2000 | 2–3 | Washington Nationals +1 | Houston Astros +0.4 | Regular | |
| Sep 5, 1999 | 6–2 | Houston Astros +4 | Houston Astros +0.8 | Regular | |
| Sep 4, 1999 | 5–2 | Houston Astros +3 | Houston Astros +0.8 | Regular | |
| Sep 3, 1999 | 8–1 | Houston Astros +7 | Houston Astros +0.8 | Regular | |
| Jun 20, 1999 | 3–11 | Houston Astros +8 | Houston Astros +1.4 | Regular | |
| Jun 19, 1999 | 2–5 | Houston Astros +3 | Houston Astros +1.4 | Regular | |
| Jun 18, 1999 | 0–5 | Houston Astros +5 | Houston Astros +1.3 | Regular | |
| May 9, 1999 | 4–2 | Washington Nationals +2 | Houston Astros +1.4 | Regular | |
| May 8, 1999 | 6–5 | Washington Nationals +1 | Houston Astros +1.4 | Regular | |
| May 7, 1999 | 2–5 | Houston Astros +3 | Houston Astros +1.4 | Regular | |
| May 21, 1998 | 6–0 | Houston Astros +6 | Houston Astros +0.3 | Regular | |
| May 20, 1998 | 4–3 | Houston Astros +1 | Houston Astros +0.3 | Regular | |
| May 19, 1998 | 2–4 | Washington Nationals +2 | Houston Astros +0.3 | Regular | |
| Apr 26, 1998 | 15–0 | Houston Astros +15 | Houston Astros +0.1 | Regular | |
| Apr 25, 1998 | 4–3 | Houston Astros +1 | Houston Astros +0.1 | Regular | |
| Apr 24, 1998 | 8–4 | Houston Astros +4 | Houston Astros +0.0 | Regular | |
| Apr 19, 1998 | 5–4 | Washington Nationals +1 | Houston Astros +0.5 | Regular | |
| Apr 18, 1998 | 3–4 | Houston Astros +1 | Houston Astros +0.5 | Regular | |
| Apr 17, 1998 | 3–5 | Houston Astros +2 | Houston Astros +0.5 | Regular | |
| Jul 27, 1997 | 2–7 | Houston Astros +5 | Houston Astros +0.3 | Regular | |
| Jul 26, 1997 | 8–9 | Houston Astros +1 | Houston Astros +0.3 | Regular | |
| Jul 25, 1997 | 2–5 | Houston Astros +3 | Houston Astros +0.2 | Regular | |
| Jul 24, 1997 | 5–10 | Houston Astros +5 | Houston Astros +0.2 | Regular | |
| Jul 20, 1997 | 9–0 | Houston Astros +9 | Washington Nationals +0.4 | Regular | |
| Jul 19, 1997 | 8–6 | Houston Astros +2 | Washington Nationals +0.4 | Regular | |
| Jul 18, 1997 | 2–0 | Houston Astros +2 | Washington Nationals +0.5 | Regular | |
| May 1, 1997 | 0–4 | Washington Nationals +4 | Washington Nationals +0.2 | Regular | |
| Apr 30, 1997 | 6–8 | Washington Nationals +2 | Washington Nationals +0.2 | Regular | |
| Apr 16, 1997 | 2–10 | Houston Astros +8 | Houston Astros +0.2 | Regular | |
| Apr 15, 1997 | 7–5 | Washington Nationals +2 | Houston Astros +0.2 | Regular | |
| Aug 14, 1996 | 8–3 | Houston Astros +5 | Washington Nationals +0.2 | Regular | |
| Aug 13, 1996 | 4–7 | Washington Nationals +3 | Washington Nationals +0.2 | Regular | |
| Aug 12, 1996 | 1–8 | Washington Nationals +7 | Washington Nationals +0.1 | Regular | |
| Aug 8, 1996 | 2–6 | Houston Astros +4 | Houston Astros +0.2 | Regular | |
| Aug 7, 1996 | 13–5 | Washington Nationals +8 | Houston Astros +0.3 | Regular | |
| Aug 6, 1996 | 7–5 | Washington Nationals +2 | Houston Astros +0.3 | Regular | |
| May 12, 1996 | 6–7 | Washington Nationals +1 | Washington Nationals +0.4 | Regular | |
| May 11, 1996 | 9–10 | Washington Nationals +1 | Washington Nationals +0.4 | Regular | |
| May 10, 1996 | 2–5 | Washington Nationals +3 | Washington Nationals +0.3 | Regular | |
| May 9, 1996 | 11–4 | Houston Astros +7 | Washington Nationals +0.4 | Regular | |
| May 5, 1996 | 5–0 | Washington Nationals +5 | Houston Astros +0.2 | Regular | |
| May 4, 1996 | 2–1 | Washington Nationals +1 | Houston Astros +0.2 | Regular | |
| May 3, 1996 | 1–4 | Houston Astros +3 | Houston Astros +0.2 | Regular | |
| Sep 17, 1995 | 5–3 | Houston Astros +2 | Washington Nationals +0.3 | Regular | |
| Sep 16, 1995 | 7–4 | Houston Astros +3 | Washington Nationals +0.3 | Regular | |
| Sep 15, 1995 | 7–3 | Houston Astros +4 | Washington Nationals +0.4 | Regular | |
| Aug 10, 1995 | 6–2 | Washington Nationals +4 | Houston Astros +0.2 | Regular | |
| Aug 9, 1995 | 6–5 | Washington Nationals +1 | Houston Astros +0.3 | Regular | |
| Aug 8, 1995 | 6–0 | Washington Nationals +6 | Houston Astros +0.3 | Regular | |
| Jun 21, 1995 | 5–3 | Houston Astros +2 | Washington Nationals +0.6 | Regular | |
| Jun 20, 1995 | 7–4 | Houston Astros +3 | Washington Nationals +0.6 | Regular | |
| Jun 19, 1995 | 6–3 | Houston Astros +3 | Washington Nationals +0.7 | Regular | |
| May 21, 1995 | 2–5 | Houston Astros +3 | Washington Nationals +0.2 | Regular | |
| May 20, 1995 | 1–2 | Houston Astros +1 | Washington Nationals +0.2 | Regular | |
| May 19, 1995 | 2–10 | Houston Astros +8 | Washington Nationals +0.3 | Regular | |
| Jun 8, 1994 | 9–2 | Houston Astros +7 | Washington Nationals +0.6 | Regular | |
| Jun 7, 1994 | 2–3 | Washington Nationals +1 | Washington Nationals +0.6 | Regular | |
| Jun 6, 1994 | 5–10 | Washington Nationals +5 | Washington Nationals +0.5 | Regular | |
| Apr 6, 1994 | 9–3 | Washington Nationals +6 | Washington Nationals +0.1 | Regular | |
| Apr 5, 1994 | 5–1 | Washington Nationals +4 | Washington Nationals +0.1 | Regular | |
| Apr 4, 1994 | 5–6 | Houston Astros +1 | Washington Nationals +0.1 | Regular | |
| Sep 5, 1993 | 1–7 | Houston Astros +6 | Washington Nationals +0.1 | Regular | |
| Sep 4, 1993 | 7–5 | Washington Nationals +2 | Washington Nationals +0.0 | Regular | |
| Sep 3, 1993 | 3–0 | Washington Nationals +3 | Washington Nationals +0.0 | Regular | |
| Aug 29, 1993 | 2–3 | Washington Nationals +1 | Washington Nationals +0.4 | Regular | |
| Aug 28, 1993 | 3–7 | Washington Nationals +4 | Washington Nationals +0.4 | Regular | |
| Aug 27, 1993 | 1–3 | Washington Nationals +2 | Washington Nationals +0.3 | Regular | |
| Jun 2, 1993 | 4–5 | Houston Astros +1 | Houston Astros +0.0 | Regular | |
| Jun 1, 1993 | 2–1 | Washington Nationals +1 | Houston Astros +0.1 | Regular | |
| May 31, 1993 | 1–2 | Houston Astros +1 | Houston Astros +0.0 | Regular | |
| Apr 15, 1993 | 1–2 | Washington Nationals +1 | Washington Nationals +0.4 | Regular | |
| Apr 14, 1993 | 9–5 | Houston Astros +4 | Washington Nationals +0.4 | Regular | |
| Apr 13, 1993 | 9–6 | Houston Astros +3 | Washington Nationals +0.4 | Regular | |
| Sep 6, 1992 | 3–1 | Houston Astros +2 | Washington Nationals +0.8 | Regular | |
| Sep 5, 1992 | 5–2 | Houston Astros +3 | Washington Nationals +0.8 | Regular | |
| Sep 4, 1992 | 2–5 | Washington Nationals +3 | Washington Nationals +0.8 | Regular | |
| Aug 30, 1992 | 4–0 | Washington Nationals +4 | Washington Nationals +0.2 | Regular | |
| Aug 29, 1992 | 2–8 | Houston Astros +6 | Washington Nationals +0.3 | Regular | |
| Aug 28, 1992 | 1–8 | Houston Astros +7 | Washington Nationals +0.3 | Regular | |
| Jun 3, 1992 | 3–5 | Houston Astros +2 | Washington Nationals +0.1 | Regular | |
| Jun 2, 1992 | 0–6 | Houston Astros +6 | Washington Nationals +0.1 | Regular | |
| Jun 1, 1992 | 7–1 | Washington Nationals +6 | Washington Nationals +0.1 | Regular | |
| May 27, 1992 | 5–8 | Washington Nationals +3 | Washington Nationals +0.5 | Regular | |
| May 26, 1992 | 9–4 | Houston Astros +5 | Washington Nationals +0.5 | Regular | |
| May 25, 1992 | 10–8 | Houston Astros +2 | Washington Nationals +0.5 | Regular | |
| Sep 1, 1991 | 1–6 | Washington Nationals +5 | Washington Nationals +0.3 | Regular | |
| Aug 31, 1991 | 4–5 | Washington Nationals +1 | Washington Nationals +0.2 | Regular | |
| Aug 30, 1991 | 1–3 | Washington Nationals +2 | Washington Nationals +0.2 | Regular | |
| Aug 25, 1991 | 4–0 | Washington Nationals +4 | Houston Astros +0.3 | Regular | |
| Aug 24, 1991 | 5–1 | Washington Nationals +4 | Houston Astros +0.3 | Regular | |
| Aug 23, 1991 | 2–9 | Houston Astros +7 | Houston Astros +0.3 | Regular | |
| Jun 19, 1991 | 1–3 | Washington Nationals +2 | Washington Nationals +0.5 | Regular | |
| Jun 18, 1991 | 2–3 | Washington Nationals +1 | Washington Nationals +0.5 | Regular | |
| Jun 17, 1991 | 2–3 | Washington Nationals +1 | Washington Nationals +0.4 | Regular | |
| Jun 6, 1991 | 8–9 | Houston Astros +1 | Washington Nationals +0.1 | Regular | |
| Jun 5, 1991 | 8–2 | Washington Nationals +6 | Washington Nationals +0.0 | Regular | |
| Jun 4, 1991 | 4–1 | Washington Nationals +3 | Houston Astros +0.0 | Regular | |
| Jul 22, 1990 | 2–3 | Houston Astros +1 | Washington Nationals +0.0 | Regular | |
| Jul 21, 1990 | 3–2 | Washington Nationals +1 | Houston Astros +0.0 | Regular | |
| Jul 20, 1990 | 6–12 | Houston Astros +6 | Washington Nationals +0.0 | Regular | |
| Jul 19, 1990 | 3–4 | Houston Astros +1 | Washington Nationals +0.1 | Regular | |
| Jul 8, 1990 | 5–3 | Houston Astros +2 | Washington Nationals +0.6 | Regular | |
| Jul 7, 1990 | 1–3 | Washington Nationals +2 | Washington Nationals +0.6 | Regular | |
| Jul 6, 1990 | 2–3 | Washington Nationals +1 | Washington Nationals +0.5 | Regular | |
| Jul 5, 1990 | 0–11 | Washington Nationals +11 | Washington Nationals +0.5 | Regular | |
| May 1, 1990 | 1–2 | Washington Nationals +1 | Washington Nationals +0.2 | Regular | |
| Apr 30, 1990 | 4–2 | Houston Astros +2 | Washington Nationals +0.2 | Regular | |
| Apr 25, 1990 | 1–0 | Washington Nationals +1 | Houston Astros +0.2 | Regular | |
| Apr 24, 1990 | 5–3 | Washington Nationals +2 | Houston Astros +0.3 | Regular | |
| Jul 9, 1989 | 6–1 | Washington Nationals +5 | Houston Astros +0.2 | Regular | |
| Jul 8, 1989 | 2–3 | Houston Astros +1 | Houston Astros +0.1 | Regular | |
| Jul 7, 1989 | 11–8 | Washington Nationals +3 | Houston Astros +0.2 | Regular | |
| Jul 2, 1989 | 2–13 | Washington Nationals +11 | Washington Nationals +0.3 | Regular | |
| Jul 1, 1989 | 4–1 | Houston Astros +3 | Washington Nationals +0.3 | Regular | |
| Jun 30, 1989 | 1–6 | Washington Nationals +5 | Washington Nationals +0.3 | Regular | |
| Jun 29, 1989 | 8–3 | Houston Astros +5 | Washington Nationals +0.3 | Regular | |
| May 10, 1989 | 10–1 | Washington Nationals +9 | Houston Astros +0.0 | Regular | |
| May 9, 1989 | 4–2 | Washington Nationals +2 | Houston Astros +0.1 | Regular | |
| May 8, 1989 | 4–1 | Washington Nationals +3 | Houston Astros +0.1 | Regular | |
| May 4, 1989 | 5–4 | Houston Astros +1 | Washington Nationals +0.5 | Regular | |
| May 3, 1989 | 5–6 | Washington Nationals +1 | Washington Nationals +0.4 | Regular | |
| Jul 20, 1988 | 3–2 | Houston Astros +1 | Washington Nationals +0.4 | Regular | |
| Jul 19, 1988 | 4–3 | Houston Astros +1 | Washington Nationals +0.4 | Regular | |
| Jul 18, 1988 | 6–1 | Houston Astros +5 | Washington Nationals +0.5 | Regular | |
| Jul 6, 1988 | 4–2 | Washington Nationals +2 | Washington Nationals +0.0 | Regular | |
| Jul 5, 1988 | 4–3 | Washington Nationals +1 | Houston Astros +0.0 | Regular | |
| Jul 4, 1988 | 7–4 | Washington Nationals +3 | Houston Astros +0.1 | Regular | |
| May 8, 1988 | 7–2 | Houston Astros +5 | Washington Nationals +0.5 | Regular | |
| May 7, 1988 | 3–4 | Washington Nationals +1 | Washington Nationals +0.4 | Regular | |
| May 6, 1988 | 5–6 | Washington Nationals +1 | Washington Nationals +0.4 | Regular | |
| May 1, 1988 | 7–3 | Washington Nationals +4 | Houston Astros +0.1 | Regular | |
| Apr 30, 1988 | 0–3 | Houston Astros +3 | Houston Astros +0.0 | Regular | |
| Apr 29, 1988 | 4–6 | Houston Astros +2 | Houston Astros +0.0 | Regular | |
| Jul 22, 1987 | 7–0 | Houston Astros +7 | Washington Nationals +0.2 | Regular | |
| Jul 21, 1987 | 4–2 | Houston Astros +2 | Washington Nationals +0.2 | Regular | |
| Jul 20, 1987 | 1–4 | Washington Nationals +3 | Washington Nationals +0.2 | Regular | |
| Jul 8, 1987 | 1–0 | Washington Nationals +1 | Houston Astros +0.5 | Regular | |
| Jul 7, 1987 | 2–0 | Washington Nationals +2 | Houston Astros +0.6 | Regular | |
| Jul 6, 1987 | 3–9 | Houston Astros +6 | Houston Astros +0.5 | Regular | |
| May 10, 1987 | 2–6 | Washington Nationals +4 | Houston Astros +0.3 | Regular | |
| May 9, 1987 | 1–3 | Washington Nationals +2 | Houston Astros +0.4 | Regular | |
| May 8, 1987 | 3–0 | Houston Astros +3 | Houston Astros +0.3 | Regular | |
| Apr 12, 1987 | 0–1 | Houston Astros +1 | Houston Astros +0.9 | Regular | |
| Apr 11, 1987 | 2–3 | Houston Astros +1 | Houston Astros +0.9 | Regular | |
| Apr 10, 1987 | 1–6 | Houston Astros +5 | Houston Astros +0.9 | Regular | |
| Jul 23, 1986 | 3–4 | Houston Astros +1 | Houston Astros +0.4 | Regular | |
| Jul 22, 1986 | 0–1 | Houston Astros +1 | Houston Astros +0.3 | Regular | |
| Jul 21, 1986 | 7–8 | Houston Astros +1 | Houston Astros +0.3 | Regular | |
| Jul 9, 1986 | 1–2 | Washington Nationals +1 | Washington Nationals +0.2 | Regular | |
| Jul 8, 1986 | 4–1 | Houston Astros +3 | Washington Nationals +0.3 | Regular | |
| Jul 7, 1986 | 12–1 | Houston Astros +11 | Washington Nationals +0.3 | Regular | |
| Jun 1, 1986 | 4–8 | Houston Astros +4 | Houston Astros +0.3 | Regular | |
| May 31, 1986 | 3–4 | Houston Astros +1 | Houston Astros +0.2 | Regular | |
| May 30, 1986 | 1–0 | Washington Nationals +1 | Houston Astros +0.3 | Regular | |
| May 4, 1986 | 6–7 | Washington Nationals +1 | Washington Nationals +0.0 | Regular | |
| May 3, 1986 | 6–7 | Washington Nationals +1 | Washington Nationals +0.0 | Regular | |
| May 2, 1986 | 6–3 | Houston Astros +3 | Washington Nationals +0.0 | Regular | |
| Jul 21, 1985 | 5–4 | Houston Astros +1 | Washington Nationals +0.5 | Regular | |
| Jul 20, 1985 | 1–6 | Washington Nationals +5 | Washington Nationals +0.5 | Regular | |
| Jul 19, 1985 | 0–4 | Washington Nationals +4 | Washington Nationals +0.4 | Regular | |
| Jul 18, 1985 | 0–3 | Washington Nationals +3 | Washington Nationals +0.4 | Regular | |
| Jul 7, 1985 | 6–3 | Washington Nationals +3 | Houston Astros +0.2 | Regular | |
| Jul 6, 1985 | 7–8 | Houston Astros +1 | Houston Astros +0.1 | Regular | |
| Jul 5, 1985 | 2–4 | Houston Astros +2 | Houston Astros +0.1 | Regular | |
| Jul 4, 1985 | 9–3 | Washington Nationals +6 | Houston Astros +0.1 | Regular | |
| May 14, 1985 | 0–10 | Houston Astros +10 | Houston Astros +0.2 | Regular | |
| May 13, 1985 | 2–3 | Houston Astros +1 | Houston Astros +0.1 | Regular | |
| May 8, 1985 | 0–1 | Washington Nationals +1 | Washington Nationals +0.2 | Regular | |
| May 7, 1985 | 3–1 | Houston Astros +2 | Washington Nationals +0.3 | Regular | |
| Jul 22, 1984 | 1–6 | Houston Astros +5 | Houston Astros +0.2 | Regular | |
| Jul 21, 1984 | 4–2 | Washington Nationals +2 | Houston Astros +0.3 | Regular | |
| Jul 20, 1984 | 4–8 | Houston Astros +4 | Houston Astros +0.2 | Regular | |
| Jul 19, 1984 | 2–3 | Houston Astros +1 | Houston Astros +0.2 | Regular | |
| Jul 8, 1984 | 5–8 | Washington Nationals +3 | Washington Nationals +0.1 | Regular | |
| Jul 7, 1984 | 3–2 | Houston Astros +1 | Washington Nationals +0.1 | Regular | |
| Jul 6, 1984 | 5–7 | Washington Nationals +2 | Washington Nationals +0.1 | Regular | |
| Jul 6, 1984 | 8–2 | Houston Astros +6 | Washington Nationals +0.2 | Regular | |
| Jul 5, 1984 | 2–1 | Houston Astros +1 | Washington Nationals +0.2 | Regular | |
| May 7, 1984 | 1–4 | Washington Nationals +3 | Washington Nationals +0.4 | Regular | |
| Apr 4, 1984 | 2–8 | Houston Astros +6 | Houston Astros +0.3 | Regular | |
| Apr 3, 1984 | 4–2 | Washington Nationals +2 | Houston Astros +0.3 | Regular | |
| Jul 24, 1983 | 3–7 | Washington Nationals +4 | Washington Nationals +0.2 | Regular | |
| Jul 23, 1983 | 1–4 | Washington Nationals +3 | Washington Nationals +0.1 | Regular | |
| Jul 22, 1983 | 11–8 | Houston Astros +3 | Washington Nationals +0.2 | Regular | |
| Jul 21, 1983 | 4–9 | Washington Nationals +5 | Washington Nationals +0.1 | Regular | |
| Jul 14, 1983 | 0–3 | Houston Astros +3 | Houston Astros +0.2 | Regular | |
| Jul 13, 1983 | 4–9 | Houston Astros +5 | Houston Astros +0.2 | Regular | |
| Jul 12, 1983 | 5–7 | Houston Astros +2 | Houston Astros +0.1 | Regular | |
| Apr 27, 1983 | 4–2 | Houston Astros +2 | Washington Nationals +0.6 | Regular | |
| Apr 26, 1983 | 2–0 | Houston Astros +2 | Washington Nationals +0.7 | Regular | |
| Apr 17, 1983 | 3–6 | Houston Astros +3 | Washington Nationals +0.2 | Regular | |
| Apr 16, 1983 | 2–0 | Washington Nationals +2 | Washington Nationals +0.1 | Regular | |
| Apr 15, 1983 | 6–7 | Houston Astros +1 | Washington Nationals +0.2 | Regular | |
| Aug 29, 1982 | 3–5 | Washington Nationals +2 | Washington Nationals +0.4 | Regular | |
| Aug 28, 1982 | 2–0 | Houston Astros +2 | Washington Nationals +0.5 | Regular | |
| Aug 26, 1982 | 2–3 | Washington Nationals +1 | Washington Nationals +0.4 | Regular | |
| Aug 26, 1982 | 3–5 | Washington Nationals +2 | Washington Nationals +0.4 | Regular | |
| Aug 22, 1982 | 5–0 | Washington Nationals +5 | Houston Astros +0.0 | Regular | |
| Aug 21, 1982 | 3–5 | Houston Astros +2 | Washington Nationals +0.0 | Regular | |
| Aug 20, 1982 | 3–4 | Houston Astros +1 | Washington Nationals +0.1 | Regular | |
| Jun 2, 1982 | 6–4 | Houston Astros +2 | Washington Nationals +0.5 | Regular | |
| May 31, 1982 | 0–10 | Washington Nationals +10 | Washington Nationals +0.4 | Regular | |
| May 26, 1982 | 4–0 | Washington Nationals +4 | Houston Astros +0.1 | Regular | |
| May 25, 1982 | 6–1 | Washington Nationals +5 | Houston Astros +0.1 | Regular | |
| May 24, 1982 | 2–0 | Washington Nationals +2 | Houston Astros +0.2 | Regular | |
| Sep 6, 1981 | 4–3 | Houston Astros +1 | Washington Nationals +0.3 | Regular | |
| Sep 5, 1981 | 2–5 | Washington Nationals +3 | Washington Nationals +0.2 | Regular | |
| Sep 4, 1981 | 5–0 | Houston Astros +5 | Washington Nationals +0.3 | Regular | |
| Sep 3, 1981 | 2–1 | Houston Astros +1 | Washington Nationals +0.3 | Regular | |
| Aug 19, 1981 | 1–9 | Houston Astros +8 | Houston Astros +0.1 | Regular | |
| Aug 18, 1981 | 2–4 | Houston Astros +2 | Houston Astros +0.1 | Regular | |
| Aug 17, 1981 | 6–2 | Washington Nationals +4 | Houston Astros +0.1 | Regular | |
| Jul 27, 1980 | 6–3 | Houston Astros +3 | Washington Nationals +0.3 | Regular | |
| Jul 26, 1980 | 1–2 | Washington Nationals +1 | Washington Nationals +0.3 | Regular | |
| Jul 25, 1980 | 9–8 | Houston Astros +1 | Washington Nationals +0.3 | Regular | |
| Jul 20, 1980 | 3–4 | Houston Astros +1 | Houston Astros +0.1 | Regular | |
| Jul 19, 1980 | 2–4 | Houston Astros +2 | Houston Astros +0.1 | Regular | |
| Jul 19, 1980 | 5–2 | Washington Nationals +3 | Houston Astros +0.1 | Regular | |
| Jul 18, 1980 | 5–4 | Washington Nationals +1 | Houston Astros +0.1 | Regular | |
| May 14, 1980 | 1–0 | Washington Nationals +1 | Houston Astros +0.3 | Regular | |
| May 13, 1980 | 3–2 | Washington Nationals +1 | Houston Astros +0.3 | Regular | |
| May 7, 1980 | 0–3 | Washington Nationals +3 | Washington Nationals +0.1 | Regular | |
| May 6, 1980 | 8–4 | Houston Astros +4 | Washington Nationals +0.1 | Regular | |
| May 5, 1980 | 1–10 | Washington Nationals +9 | Washington Nationals +0.1 | Regular | |
| Aug 29, 1979 | 3–5 | Washington Nationals +2 | Washington Nationals +0.1 | Regular | |
| Aug 28, 1979 | 6–7 | Washington Nationals +1 | Washington Nationals +0.1 | Regular | |
| Aug 27, 1979 | 3–0 | Houston Astros +3 | Washington Nationals +0.1 | Regular | |
| Aug 15, 1979 | 3–0 | Washington Nationals +3 | Houston Astros +0.5 | Regular | |
| Aug 14, 1979 | 1–2 | Houston Astros +1 | Houston Astros +0.4 | Regular | |
| Aug 13, 1979 | 1–4 | Houston Astros +3 | Houston Astros +0.4 | Regular | |
| Jun 17, 1979 | 3–19 | Washington Nationals +16 | Washington Nationals +0.1 | Regular | |
| Jun 16, 1979 | 2–4 | Washington Nationals +2 | Washington Nationals +0.1 | Regular | |
| Jun 15, 1979 | 2–1 | Houston Astros +1 | Washington Nationals +0.2 | Regular | |
| Jun 3, 1979 | 4–5 | Houston Astros +1 | Houston Astros +0.3 | Regular | |
| Jun 2, 1979 | 1–2 | Houston Astros +1 | Houston Astros +0.2 | Regular | |
| Jun 1, 1979 | 2–3 | Houston Astros +1 | Houston Astros +0.2 | Regular | |
| Jul 26, 1978 | 0–5 | Houston Astros +5 | Houston Astros +0.4 | Regular | |
| Jul 25, 1978 | 2–3 | Houston Astros +1 | Houston Astros +0.4 | Regular | |
| Jul 24, 1978 | 5–6 | Houston Astros +1 | Houston Astros +0.4 | Regular | |
| Jul 16, 1978 | 1–6 | Washington Nationals +5 | Washington Nationals +0.0 | Regular | |
| Jul 15, 1978 | 0–8 | Washington Nationals +8 | Houston Astros +0.0 | Regular | |
| Jul 14, 1978 | 5–4 | Houston Astros +1 | Washington Nationals +0.1 | Regular | |
| Jul 14, 1978 | 4–3 | Houston Astros +1 | Washington Nationals +0.0 | Regular | |
| Jul 13, 1978 | 0–6 | Washington Nationals +6 | Washington Nationals +0.0 | Regular | |
| May 3, 1978 | 3–10 | Washington Nationals +7 | Houston Astros +0.1 | Regular | |
| Apr 30, 1978 | 2–1 | Washington Nationals +1 | Houston Astros +0.6 | Regular | |
| Apr 29, 1978 | 1–3 | Houston Astros +2 | Houston Astros +0.5 | Regular | |
| Apr 28, 1978 | 6–3 | Washington Nationals +3 | Houston Astros +0.6 | Regular | |
| Sep 4, 1977 | 7–1 | Houston Astros +6 | Houston Astros +0.3 | Regular | |
| Sep 3, 1977 | 1–5 | Washington Nationals +4 | Houston Astros +0.3 | Regular | |
| Sep 2, 1977 | 5–2 | Houston Astros +3 | Houston Astros +0.3 | Regular | |
| Aug 28, 1977 | 2–7 | Houston Astros +5 | Houston Astros +0.6 | Regular | |
| Aug 27, 1977 | 0–4 | Houston Astros +4 | Houston Astros +0.6 | Regular | |
| Aug 26, 1977 | 5–6 | Houston Astros +1 | Houston Astros +0.5 | Regular | |
| Jun 22, 1977 | 7–0 | Houston Astros +7 | Houston Astros +0.1 | Regular | |
| Jun 21, 1977 | 0–6 | Washington Nationals +6 | Houston Astros +0.2 | Regular | |
| Jun 20, 1977 | 6–3 | Houston Astros +3 | Houston Astros +0.1 | Regular | |
| Jun 15, 1977 | 2–0 | Washington Nationals +2 | Houston Astros +0.6 | Regular | |
| Jun 14, 1977 | 0–5 | Houston Astros +5 | Houston Astros +0.6 | Regular | |
| Jun 13, 1977 | 3–2 | Washington Nationals +1 | Houston Astros +0.6 | Regular | |
| Jul 19, 1976 | 3–1 | Houston Astros +2 | Houston Astros +0.2 | Regular | |
| Jul 18, 1976 | 7–6 | Houston Astros +1 | Houston Astros +0.1 | Regular | |
| Jul 18, 1976 | 14–1 | Houston Astros +13 | Houston Astros +0.1 | Regular | |
| Jul 11, 1976 | 0–1 | Houston Astros +1 | Houston Astros +0.5 | Regular | |
| Jul 10, 1976 | 2–4 | Houston Astros +2 | Houston Astros +0.5 | Regular | |
| Jul 9, 1976 | 0–6 | Houston Astros +6 | Houston Astros +0.4 | Regular | |
| Jul 8, 1976 | 6–7 | Houston Astros +1 | Houston Astros +0.4 | Regular | |
| May 12, 1976 | 7–2 | Washington Nationals +5 | Houston Astros +0.2 | Regular | |
| May 11, 1976 | 3–5 | Houston Astros +2 | Houston Astros +0.1 | Regular | |
| Apr 29, 1976 | 3–1 | Houston Astros +2 | Washington Nationals +0.4 | Regular | |
| Apr 28, 1976 | 6–4 | Houston Astros +2 | Washington Nationals +0.4 | Regular | |
| Apr 28, 1976 | 7–8 | Washington Nationals +1 | Washington Nationals +0.3 | Regular | |
| Jul 24, 1975 | 6–5 | Houston Astros +1 | Washington Nationals +0.4 | Regular | |
| Jul 23, 1975 | 2–1 | Houston Astros +1 | Washington Nationals +0.4 | Regular | |
| Jul 22, 1975 | 1–2 | Washington Nationals +1 | Washington Nationals +0.4 | Regular | |
| Jul 9, 1975 | 3–4 | Houston Astros +1 | Houston Astros +0.1 | Regular | |
| Jul 8, 1975 | 1–5 | Houston Astros +4 | Houston Astros +0.0 | Regular | |
| Jul 7, 1975 | 1–5 | Houston Astros +4 | Washington Nationals +0.0 | Regular | |
| May 25, 1975 | 7–8 | Houston Astros +1 | Houston Astros +0.3 | Regular | |
| May 24, 1975 | 2–1 | Washington Nationals +1 | Houston Astros +0.3 | Regular | |
| May 23, 1975 | 2–4 | Houston Astros +2 | Houston Astros +0.3 | Regular | |
| May 11, 1975 | 6–0 | Houston Astros +6 | Washington Nationals +0.3 | Regular | |
| May 10, 1975 | 7–8 | Washington Nationals +1 | Washington Nationals +0.3 | Regular | |
| May 9, 1975 | 4–5 | Washington Nationals +1 | Washington Nationals +0.2 | Regular | |
| Aug 18, 1974 | 3–0 | Houston Astros +3 | Washington Nationals +0.0 | Regular | |
| Aug 17, 1974 | 2–3 | Washington Nationals +1 | Houston Astros +0.0 | Regular | |
| Aug 16, 1974 | 8–3 | Houston Astros +5 | Washington Nationals +0.0 | Regular | |
| Aug 11, 1974 | 5–2 | Washington Nationals +3 | Houston Astros +0.5 | Regular | |
| Aug 10, 1974 | 2–1 | Washington Nationals +1 | Houston Astros +0.5 | Regular | |
| Aug 9, 1974 | 4–3 | Washington Nationals +1 | Houston Astros +0.6 | Regular | |
| Jun 6, 1974 | 0–4 | Houston Astros +4 | Houston Astros +0.4 | Regular | |
| Jun 5, 1974 | 8–3 | Washington Nationals +5 | Houston Astros +0.4 | Regular | |
| Jun 4, 1974 | 5–0 | Washington Nationals +5 | Houston Astros +0.5 | Regular | |
| May 30, 1974 | 4–3 | Houston Astros +1 | Washington Nationals +0.0 | Regular | |
| May 29, 1974 | 5–3 | Houston Astros +2 | Washington Nationals +0.1 | Regular | |
| May 28, 1974 | 8–4 | Houston Astros +4 | Washington Nationals +0.1 | Regular | |
| Jul 18, 1973 | 3–2 | Washington Nationals +1 | Houston Astros +0.6 | Regular | |
| Jul 17, 1973 | 7–2 | Washington Nationals +5 | Houston Astros +0.7 | Regular | |
| Jul 16, 1973 | 5–6 | Houston Astros +1 | Houston Astros +0.6 | Regular | |
| Jul 8, 1973 | 9–7 | Houston Astros +2 | Houston Astros +0.1 | Regular | |
| Jul 7, 1973 | 1–6 | Washington Nationals +5 | Houston Astros +0.1 | Regular | |
| Jul 6, 1973 | 6–14 | Washington Nationals +8 | Houston Astros +0.2 | Regular | |
| Jul 6, 1973 | 8–12 | Washington Nationals +4 | Houston Astros +0.2 | Regular | |
| May 8, 1973 | 3–4 | Washington Nationals +1 | Houston Astros +0.4 | Regular | |
| May 7, 1973 | 6–0 | Houston Astros +6 | Houston Astros +0.4 | Regular | |
| Apr 29, 1973 | 3–4 | Houston Astros +1 | Houston Astros +0.8 | Regular | |
| Apr 28, 1973 | 3–5 | Houston Astros +2 | Houston Astros +0.8 | Regular | |
| Apr 27, 1973 | 5–6 | Houston Astros +1 | Houston Astros +0.7 | Regular | |
| Aug 27, 1972 | 2–8 | Houston Astros +6 | Houston Astros +0.8 | Regular | |
| Aug 26, 1972 | 5–6 | Houston Astros +1 | Houston Astros +0.7 | Regular | |
| Aug 25, 1972 | 4–3 | Washington Nationals +1 | Houston Astros +0.8 | Regular | |
| Aug 17, 1972 | 17–5 | Houston Astros +12 | Houston Astros +0.3 | Regular | |
| Aug 16, 1972 | 5–0 | Houston Astros +5 | Houston Astros +0.3 | Regular | |
| Aug 15, 1972 | 2–3 | Washington Nationals +1 | Houston Astros +0.3 | Regular | |
| Jun 14, 1972 | 4–5 | Houston Astros +1 | Houston Astros +0.8 | Regular | |
| Jun 13, 1972 | 5–1 | Washington Nationals +4 | Houston Astros +0.8 | Regular | |
| Jun 12, 1972 | 1–3 | Houston Astros +2 | Houston Astros +0.8 | Regular | |
| Jun 4, 1972 | 5–0 | Houston Astros +5 | Houston Astros +0.2 | Regular | |
| Jun 3, 1972 | 0–1 | Washington Nationals +1 | Houston Astros +0.3 | Regular | |
| Jun 2, 1972 | 7–1 | Houston Astros +6 | Houston Astros +0.2 | Regular | |
| Aug 1, 1971 | 8–1 | Houston Astros +7 | Houston Astros +0.4 | Regular | |
| Jul 31, 1971 | 4–6 | Washington Nationals +2 | Houston Astros +0.4 | Regular | |
| Jul 30, 1971 | 4–7 | Washington Nationals +3 | Houston Astros +0.4 | Regular | |
| Jul 30, 1971 | 6–5 | Houston Astros +1 | Houston Astros +0.4 | Regular | |
| Jul 22, 1971 | 2–8 | Houston Astros +6 | Houston Astros +0.8 | Regular | |
| Jul 21, 1971 | 5–3 | Washington Nationals +2 | Houston Astros +0.8 | Regular | |
| Jul 20, 1971 | 4–3 | Washington Nationals +1 | Houston Astros +0.9 | Regular | |
| May 6, 1971 | 5–2 | Houston Astros +3 | Houston Astros +0.1 | Regular | |
| May 5, 1971 | 1–5 | Washington Nationals +4 | Houston Astros +0.1 | Regular | |
| Apr 25, 1971 | 2–1 | Washington Nationals +1 | Houston Astros +0.6 | Regular | |
| Apr 24, 1971 | 3–2 | Washington Nationals +1 | Houston Astros +0.6 | Regular | |
| Apr 23, 1971 | 3–2 | Washington Nationals +1 | Houston Astros +0.7 | Regular | |
| Aug 27, 1970 | 5–4 | Houston Astros +1 | Houston Astros +0.2 | Regular | |
| Aug 26, 1970 | 5–4 | Houston Astros +1 | Houston Astros +0.2 | Regular | |
| Aug 25, 1970 | 6–3 | Houston Astros +3 | Houston Astros +0.1 | Regular | |
| Aug 16, 1970 | 5–3 | Washington Nationals +2 | Houston Astros +0.8 | Regular | |
| Aug 15, 1970 | 3–7 | Houston Astros +4 | Houston Astros +0.8 | Regular | |
| Aug 14, 1970 | 10–2 | Washington Nationals +8 | Houston Astros +0.8 | Regular | |
| Jun 14, 1970 | 1–2 | Washington Nationals +1 | Houston Astros +0.4 | Regular | |
| Jun 13, 1970 | 5–2 | Houston Astros +3 | Houston Astros +0.4 | Regular | |
| Jun 12, 1970 | 6–7 | Washington Nationals +1 | Houston Astros +0.4 | Regular | |
| Jun 4, 1970 | 0–8 | Houston Astros +8 | Houston Astros +1.0 | Regular | |
| Jun 3, 1970 | 0–5 | Houston Astros +5 | Houston Astros +1.0 | Regular | |
| Jun 2, 1970 | 4–6 | Houston Astros +2 | Houston Astros +0.9 | Regular | |
| Aug 10, 1969 | 1–3 | Houston Astros +2 | Houston Astros +1.0 | Regular | |
| Aug 9, 1969 | 3–5 | Houston Astros +2 | Houston Astros +1.0 | Regular | |
| Aug 8, 1969 | 2–5 | Houston Astros +3 | Houston Astros +0.9 | Regular | |
| Aug 3, 1969 | 7–3 | Houston Astros +4 | Houston Astros +0.5 | Regular | |
| Aug 3, 1969 | 0–1 | Washington Nationals +1 | Houston Astros +0.5 | Regular | |
| Aug 2, 1969 | 5–3 | Houston Astros +2 | Houston Astros +0.4 | Regular | |
| Aug 1, 1969 | 5–3 | Houston Astros +2 | Houston Astros +0.4 | Regular | |
| May 22, 1969 | 4–7 | Houston Astros +3 | Houston Astros +0.4 | Regular | |
| May 21, 1969 | 2–3 | Houston Astros +1 | Houston Astros +0.3 | Regular | |
| May 20, 1969 | 0–5 | Houston Astros +5 | Houston Astros +0.3 | Regular | |
| May 14, 1969 | 3–1 | Houston Astros +2 | Washington Nationals +0.3 | Regular | |
| May 13, 1969 | 10–3 | Houston Astros +7 | Washington Nationals +0.3 | Regular |