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Big Days in Astros History - Sept. 25, 1997 - Astros clinch 1997 playoffs
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The Orioles' magic number is down to 3 - Camden Chat
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Houston Astros clinch third straight AL West title
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Astros playoffs: 1997
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September 25, 1997: Astros clinch first National League Central Division title – Society for American Baseball Research
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Astrodome - Wikipedia
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Official Houston Astros Website
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Rays' injuries, Braves' pitching, and more issues to keep an eye on during MLB playoffs
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2018 MLB year in review: Red Sox's dominance, Harper's Home Run Derby and all the other memorable moments
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Big Days in Astros History - October 7, 2001 - Astros clinch NL Central