On August 24, 2001 — 2001 – The Colorado Rockies defeat the Mets, 10 – 0, in P Jason Jennings’ major league debut. Jennings hurls a 5-hit shutout, while getting three safeties himself, including a home run. He becomes the first pitcher since 1900to hurl a shutout and hit a home run in his first big league game.
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Sources:
Baseball Reference August 24
National Pastime August 24
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game