Houston Astros team records

This is a list of individual single-season records for the Houston Astros of Major League Baseball.

ingle-season batting leaders

*Batting average: Jeff Bagwell (.368, 1994)
*On-base percentage: Jeff Bagwell (.454, 1999)
*Slugging average: Jeff Bagwell (.750, 1994)
*On-base plus slugging: Jeff Bagwell (1.201, 1994)
*At bats: Enos Cabell (660, 1978)
*Runs: Jeff Bagwell (152, 2000)
*Hits: Craig Biggio (210, 1998)
*Total bases: Jeff Bagwell (363, 2000)
*Singles: Sonny Jackson (160, 1966)
*Doubles: Craig Biggio (56, 1999)
*Triples: Roger Metzger (14, 1973)
*Home runs: Jeff Bagwell (47, 2000)
*Extra-base hits: Lance Berkman (94, 2001)
*Runs batted in: Lance Berkman (136, 2006)
*Walks: Jeff Bagwell (149, 1999)
*Strikeouts: Lee May (145, 1972)
*Stolen bases: Gerald Young (65, 1988)
*Times on base: Jeff Bagwell (331, 1999)
*Times hit by pitch: Craig Biggio (34, 1997)
*Sacrifice hits: Craig Reynolds (34, 1979)
*Intentional walks: Jeff Bagwell (27, 1997)
*Times grounded into double play: Brad Ausmus (30, 2002)
*At bats per strikeout (most, from amongst players to have met innings played qualification): Bob Lillis (40.8, 1965)
*At bats per home run (fewest, from amongst players to have met innings played qualification): Jeff Bagwell (10.3, 1994)

ingle-season pitching leaders

*Earned run average: Roger Clemens (1.87, 2005)
*Wins: Mike Hampton (22, 1999)
*Win-loss percentage (from amongst players to have met games started qualification): Mike Hampton (.846, 1999)
*Walks and hits per inning pitched: Mike Scott (.923, 1986)
*Walks issued per nine innings (from amongst players to have met innings pitched qualification): Jose Lima (1.23, 1998)
*Hits allowed per nine innings (from amongst players to have met innings pitched qualification): Mike Scott (5.95, 1986)
*Home runs allowed: Jose Lima (48, 2000)
*Walks allowed: J.R. Richard (151, 1976)
*Hits allowed: Jerry Reuss (271, 1973)
*Strikeouts thrown per nine innings: Nolan Ryan (11.48, 1987)
*Games pitched: Octavio Dotel (83, 2002)
*Saves: Billy Wagner (44, 2003)
*Innings pitched: Larry Dierker (305 1/3, 1969)
*Strikeouts: J.R. Richard (313, 1979)
*Games started: Jerry Reuss (40, 1973)
*Complete games: Larry Dierker (20, 1969)
*Shutouts: Dave Roberts (6, 1973)
*Strikeout-to-walk ratio (from amongst players to have met innings pitched qualification): Shane Reynolds (5.32, 1999)
*losses: Turk Farrell (20, 1962)
*Earned runs allowed (most): Jose Lima (145, 2000)
*Wild pitches: Joe Niekro (21, 1985)
*Batters faced: J.R. Richard (1,218, 1976)
*Games finished: Doug Jones (70, 1992)