Houston have beaten New York 2-1 in game one of the MLB's American League Championship Series (ALCS).
Astros starting pitcher Dallas Keuchel dominated the Yankees again, with 10 strikeouts in seven scoreless innings.
He entered Friday's game with a 1.24 ERA against the Yankees in regular season starts plus six shutout innings in the 2015 AL wildcard game.
Keuchel allowed just four hits -- all singles -- walked one and joined Nolan Ryan and Mike Scott as the only Astros pitchers to reach double digits in strikeouts in a postseason game.
Carlos Correa and Yuli Gurriel hit RBI singles in the fourth off Masahiro Tanaka, and left fielder Marwin Gonzalez threw out Greg Bird at the plate trying to score on Aaron Judge's two-run single in the fifth.
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Bird homered off Ken Giles with two outs in the ninth but the Astros closer struck out pinch hitter Jacoby Ellsbury to end it.
