List of Houston Astros team records
# List of Houston Astros team records

The Houston Astros are a professional baseball team based in Houston, Texas. They compete in the Western Division of Major League Baseball's (MLB) American League (AL). The Astros began play during the 1962 MLB season as an expansion team and were known as the Houston Colt .45s for their first three years of existence. They played in the National League prior to 2013. The team's list of records includes individual single-season records set by Astros players for both batting and pitching.

## Individual batting leaders

Colt .45s/Astros single-season batting records :

| Category | Record | Player | Yr. |
| - | - | - | - |
| Batting average | .368 | Jeff Bagwell | 1994 |
| On-base percentage | .454 | Jeff Bagwell | 1999 |
| Slugging percentage | .750 | Jeff Bagwell | 1994 |
| On-base plus slugging percentage | 1.201 | Jeff Bagwell | 1994 |
| Games played | 162 | 7 tied | 2016 |
| Plate appearances | 749 | Craig Biggio | 1999 |
| At bats | 660 | Enos Cabell | 1978 |
| At bats | 660 | José Altuve | 2014 |
| Runs scored | 152 | Jeff Bagwell | 2000 |
| Hits | 225 | José Altuve | 2014 |
| Singles | 168 | José Altuve | 2014 |
| Doubles | 56 | Craig Biggio | 1999 |
| Triples | 14 | Roger Metzger | 1973 |
| Home runs | 47 | Jeff Bagwell | 2000 |
| Extra-base hits | 94 | Lance Berkman | 2001 |
| Total bases | 363 | Jeff Bagwell | 2000 |
| Runs batted in (RBI) | 136 | Lance Berkman | 2006 |
| Bases on balls | 149 | Jeff Bagwell | 1999 |
| Strikeouts | 212 | Chris Carter | 2013 |
| Stolen bases | 65 | Gerald Young | 1988 |
| Times on base | 331 | Jeff Bagwell | 1999 |
| Offensive winning percentage | .858 | Jeff Bagwell | 1994 |
| Hits by pitch | 34 | Craig Biggio | 1997 |
| Sacrifice hits | 34 | Craig Reynolds | 1979 |
| Sacrifice flies | 13 | Ray Knight | 1982 |
| Sacrifice flies | 13 | Jeff Bagwell | 1992 |
| Sacrifice flies | 13 | Carlos Lee | 2007 |
| Intentional walks | 27 | Jeff Bagwell | 1997 |
| Double plays grounded into | 32 | Miguel Tejada | 2008 |
| Caught stealing | 27 | Gerald Young | 1988 |
| Stolen base percentage | 100.0 | Carlos Beltrán | 2004 |
| Power–speed number | 36.0 | Jeff Bagwell | 1997 |
| At bats per strikeout | 40.8 | Bob Lillis | 1965 |
| At bats per home run | 10.3 | Jeff Bagwell | 1994 |
| Ref: ||||

Colt .45s/Astros career batting records :

| Category | Record | Player | First | Last |
| - | - | - | - | - |
| Batting average | .331 | Moisés Alou | 1998 | 2001 |
| On-base percentage | .410 | Lance Berkman | 1999 | 2010 |
| Slugging percentage | .585 | Moisés Alou | 1998 | 2001 |
| On-base plus slugging percentage | .988 | Moisés Alou | 1998 | 2001 |
| Games played | 2850 | Craig Biggio | 1988 | 2007 |
| Plate appearances | 12504 | Craig Biggio | 1988 | 2007 |
| At bats | 10876 | Craig Biggio | 1988 | 2007 |
| Runs scored | 1844 | Craig Biggio | 1988 | 2007 |
| Hits | 3060 | Craig Biggio | 1988 | 2007 |
| Singles | 2046 | Craig Biggio | 1988 | 2007 |
| Doubles | 665 | Craig Biggio | 1988 | 2007 |
| Triples | 80 | José Cruz | 1975 | 1987 |
| Home runs | 449 | Jeff Bagwell | 1991 | 2005 |
| Extra base hits | 1014 | Craig Biggio | 1988 | 2007 |
| Total bases | 4711 | Craig Biggio | 1988 | 2007 |
| Runs batted in (RBI) | 1529 | Jeff Bagwell | 1991 | 2005 |
| Bases on balls | 1401 | Jeff Bagwell | 1991 | 2005 |
| Strikeouts | 1753 | Craig Biggio | 1988 | 2007 |
| Stolen bases | 487 | César Cedeño | 1970 | 1981 |
| Times on base | 4505 | Craig Biggio | 1988 | 2007 |
| Offensive winning percentage | .726 | Moisés Alou | 1998 | 2001 |
| Offensive winning percentage | .726 | Lance Berkman | 1999 | 2010 |
| Hits by pitch | 285 | Craig Biggio | 1988 | 2007 |
| Sacrifice hits | 101 | Craig Biggio | 1988 | 2007 |
| Sacrifice flies | 102 | Jeff Bagwell | 1991 | 2005 |
| Intentional walks | 155 | Jeff Bagwell | 1991 | 2005 |
| Double plays grounded into | 221 | Jeff Bagwell | 1991 | 2005 |
| Caught stealing | 149 | César Cedeño | 1970 | 1981 |
| Stolen base percentage | 82.48 | Michael Bourn | 2008 | 2011 |
| Power–speed number | 341.8 | Craig Biggio | 1988 | 2007 |
| At bats per strikeout | 21.2 | Bob Lillis | 1962 | 1967 |
| At bats per home run | 15.6 | Chris Carter | 2013 | 2015 |
| Also: | Also: | Also: | Also: | Also: |

## Individual pitching leaders

Single-season pitching records :

| Category | Record | Player | Yr. |
| - | - | - | - |
| Earned run average (ERA) | 1.69 | Nolan Ryan | 1981 |
| Wins | 22 | Mike Hampton | 1999 |
| Win–loss percentage | .846 | Mike Hampton | 1999 |
| Walks plus hits per inning (WHIP) | 0.803 | Justin Verlander | 2019 |
| Hits per nine innings (H/9) | 5.529 | Justin Verlander | 2019 |
| Bases on balls per nine innings (BB/9) | 1.209 | Zack Greinke | 2020 |
| Strikeouts per nine innings (K/9) | 13.818 | Gerrit Cole | 2019 |
| Games played | 83 | Octavio Dotel | 2002 |
| Saves | 44 | Billy Wagner | 2003 |
| Saves | 44 | José Valverde | 2008 |
| Innings pitched | 3051⁄3 | Larry Dierker | 1969 |
| Strikeouts | 326 | Gerrit Cole | 2019 |
| Games started | 40 | Jerry Reuss | 1973 |
| Complete games | 20 | Larry Dierker | 1969 |
| Shutouts | 6 | Dave Roberts | 1973 |
| Hits | 271 | Jerry Reuss | 1973 |
| Bases on balls | 151 | J. R. Richard | 1976 |
| Home runs allowed | 48 | José Lima | 2000 |
| Strikeout-to-walk ratio (K/BB) | 7.838 | Justin Verlander | 2018 |
| Home runs per nine innings (HR/9) | 0.121 | Nolan Ryan | 1981 |
| Losses | 20 | Turk Farrell | 1962 |
| Earned runs | 145 | José Lima | 2000 |
| Wild pitches | 21 | Joe Niekro | 1985 |
| Hits by pitch | 16 | Jack Billingham | 1971 |
| Hits by pitch | 16 | Darryl Kile | 1996 |
| Hits by pitch | 16 | Charlie Morton | 2018 |
| Batters faced | 1,218 | J. R. Richard | 1976 |
| Games finished | 71 | José Valverde | 2008 |
| Adjusted ERA+ | 226 | Roger Clemens | 2005 |
| Fielding Independent Pitching (FIP) | 2.16 | Mike Scott | 1986 |
| Adjusted pitching wins | 5.9 | Roger Clemens | 2005 |
| Adjusted pitching runs | 54 | Roger Clemens | 2005 |
| Base-out runs saved (RE24) | 58.81 | Justin Verlander | 2019 |
| Win probability added | 6.3 | Larry Dierker | 1969 |
| Situational wins saved | 6.5 | Mike Scott | 1986 |
| Championship win probability added | 8.2 | Vern Ruhle | 1980 |
| Situational wins added | 6.2 | Mike Scott | 1986 |

Career pitching records :

| Category | Record | Player | First | Last |
| - | - | - | - | - |
| Earned run average (ERA) | 2.29 | Justin Verlander | 2017 | 2022 |
| Wins | 144 | Joe Niekro | 1975 | 1985 |
| Win–loss percentage | .759 | Justin Verlander | 2017 | 2022 |
| Walks plus hits per inning (WHIP) | 0.834 | Justin Verlander | 2017 | 2022 |
| Hits per nine innings (H/9) | 5.920 | Justin Verlander | 2017 | 2022 |
| Bases on balls per nine innings (BB/9) | 1.590 | Justin Verlander | 2017 | 2022 |
| Strikeouts per nine innings (K/9) | 12.385 | Billy Wagner | 1995 | 2003 |
| Games played | 563 | Dave Smith | 1980 | 1990 |
| Saves | 225 | Billy Wagner | 1995 | 2003 |
| Innings pitched | 2,2941⁄3 | Larry Dierker | 1964 | 1976 |
| Strikeouts | 1,866 | Nolan Ryan | 1980 | 1988 |
| Games started | 320 | Larry Dierker | 1964 | 1976 |
| Complete games | 106 | Larry Dierker | 1964 | 1976 |
| Shutouts | 25 | Larry Dierker | 1964 | 1976 |
| Hits | 2,090 | Larry Dierker | 1964 | 1976 |
| Bases on balls | 818 | Joe Niekro | 1975 | 1985 |
| Home runs allowed | 177 | Larry Dierker | 1964 | 1976 |
| Strikeout-to-walk ratio (K/BB) | 7.17 | Justin Verlander | 2017 | 2022 |
| Home runs per nine innings (HR/9) | 0.331 | Dave Smith | 1980 | 1990 |
| Losses | 117 | Larry Dierker | 1964 | 1976 |
| Earned runs | 837 | Larry Dierker | 1964 | 1976 |
| Wild pitches | 128 | Joe Niekro | 1975 | 1985 |
| Hits by pitch | 72 | Darryl Kile | 1991 | 1997 |
| Batters faced | 9,492 | Larry Dierker | 1964 | 1976 |
| Games finished | 400 | Dave Smith | 1980 | 1990 |
| Adjusted ERA+ | 186 | Justin Verlander | 2017 | 2022 |
| Fielding Independent Pitching (FIP) | 2.39 | Mike Cuellar | 1965 | 1968 |
| Adjusted pitching wins | 23.8 | Roy Oswalt | 2001 | 2010 |
| Adjusted pitching runs | 231 | Roy Oswalt | 2001 | 2010 |
| Base-out runs saved (RE24) | 250.14 | Roy Oswalt | 2001 | 2010 |
| Win probability added | 22.9 | Roy Oswalt | 2001 | 2010 |
| Situational wins saved | 6.5 | Roy Oswalt | 2001 | 2010 |
| Championship win probability added | 16.7 | Billy Wagner | 1995 | 2003 |
