The 1981 Houston Astros season was the 20th season for the Major League Baseball (MLB) franchise in Houston, Texas. The season was divided into two halves because of a players' strike in mid-season. The Astros won the National League West in the second half with a loss by the Cincinnati Reds on October 3, the penultimate day of the season. The Astros advanced to the playoffs, which matched the winners of the two halves in a Division Series (the name would be re-introduced fourteen years later). However, they were defeated in five games by the Los Angeles Dodgers in the NLDS.

Offseason

Regular season

Season standings

Record vs. opponents

Notable transactions

Nolan Ryan's 5th No-Hitter

On September 26, 1981, Nolan Ryan no-hit the Los Angeles Dodgers, 5-0, on national television. The 34-year-old right-hander became the first pitcher to throw five career no-hitters. It had been six years since Ryan's last no-hitter; he pitched for the California Angels for the last of four no-hitters.

Roster

Game log

Regular season (First half)

Regular season (games canceled by the 1981 Major League Baseball strike)

Regular season (Second half)

Postseason Game log

Player stats

Batting

Starters by position

''Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in''

Other batters

''Note: G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in''

Pitching

Starting pitchers

Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Other pitchers

Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Relief pitchers

Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; SV = Saves; ERA = Earned run average; SO = Strikeouts

1981 National League Division Series

Los Angeles Dodgers vs. Houston Astros Los Angeles wins series, 3-2.

Farm system

LEAGUE CHAMPIONS: Daytona Beach