October 12, 1980: Phillies rally to clinch NL pennant in 10 innings at Astrodome – Society for American Baseball Research
Verlander leads Astros over D-backs 1-0, and both teams clinch postseason spots
Houston Astros clinch third straight AL West title
Houston Astros clinch second straight AL West title
List of Houston Astros seasons - Wikipedia
Houston Astros: Jeremy Peña homer in 18th caps sweep of Mariners
Verlander leads Astros over D-backs 1-0, and both teams clinch postseason spots
Houston Astros: 3 Reasons the Astros Don't Stand a Chance in the NL Central, News, Scores, Highlights, Stats, and Rumors
Abreu, Alvarez and Altuve help Astros pull even in ALCS with 10-3 win over Rangers in Game 4
MLB magic numbers: Phillies on brink; Astros choking? (9/24/23)
MLB magic numbers, schedules: Astros back in playoffs; Blue Jays gain on Yankees (9/17/22)
All Houston Astros Division Championship Clinches
LAD@HOU: Astros clinch divison in last Astrodome game
One big swing ends 15 years of futility for Reds - The San Diego Union-Tribune
Astros clinch NL Central, 10/03/1999