Big Days in Astros History - October 6, 1980 - Astros clinch first division title in club history

Phillies 7, Astros 0: How Houston fell behind 2-1 in World Series

Houston Astros clinch division in 1980 (THROWBACK!)

Astros win first division title in 16 years

History of MLB Tiebreaker Games

Minnesota Twins Drop Game 3 Of ALCS, Astros Up 2-1

Houston Astros & Philadelphia Phillies World Series Bound

Houston Astros: Looking back at team's division title clinchers

Houston Astros history - 1980 season

October 3, 1999: Astros clinch third consecutive NL Central title in Astrodome's last regular-season game – Society for American Baseball Research

How the Houston Astros Finally Hit on a Formula That Worked for Them - The New York Times

October 12, 1980: Phillies rally to clinch NL pennant in 10 innings at Astrodome – Society for American Baseball Research

MORE