List of Houston Astros seasons


This is a list of seasons completed by the Houston Astros, originally known as the Houston Colt.45s, professional baseball franchise; they played in the National League from their inception in 1962 to the 2012 season; in 2013, the team was moved to the American League.
The Astros have completed 56 seasons in Major League Baseball, qualifying for the postseason eleven times and reaching the World Series three times. Established as an expansion franchise in 1962, the team's first winning season was in 1972. In 1980 the Astros made their first postseason appearance. From 1997–2005, the team made postseason appearances in six out of nine seasons. From 2006 to 2013 the franchise experienced a steady decline with consecutive 100-loss seasons in 2011, 2012 and 2013. In 2015 the team defeated the New York Yankees in the 2015 American League Wild Card Game. This was the Astros' first postseason appearance as an American League team, and first overall since 2005. It was also the Astros' first playoff win since Game 6 of the 2005 National League Championship Series. Houston would qualify for the playoffs again in 2017, defeating the Boston Red Sox in the 2017 American League Division Series and the New York Yankees in the 2017 American League Championship Series. The team would go on to defeat the Los Angeles Dodgers in the 2017 World Series, winning the championship for the first time in team history. They are only team to have qualified for the World Series as a member of both leagues, and one of two to have qualified for the League Championship Series in both leagues.

Regular season record-by-year

Record by decade

The following table describes the Astros' MLB win–loss record by decade.
DecadeWinsLossesPct
1960s555739.429
1970s793817.493
1980s819750.522
1990s813742.523
2000s832787.514
2010s789831.487
All-time46014666

These statistics are from Baseball-Reference.com's Houston Astros History & Encyclopedia, and are current as of September 30, 2018.

Postseason appearances

Post-season record by year

This is the post-season record for the Astros.

Footnotes