On August 19, 2001 — Greg Colbrunn hits a pinch-hit home run in the Diamondbacks’ 13 – 6 win over the Cubs. Colbrunn’s blast is the 13th round-tripper by a pinch-hitter for Arizona this year, breaking the National League mark set by the 1957 Redlegs.


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Sources:
Baseball Reference August 19
National Pastime August 19
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game