Grover Cleveland Alexander wins his 372nd game to tie Christy Mathewson’s National League record for wins (the record has since been amended to 373 wins). The Cardstop the Robins, 5 – 2.

On August 1, 1929 — Grover Cleveland Alexander wins his 372nd game to tie Christy Mathewson’s National League record for wins (the record has since been amended to 373 wins). The Cardstop the Robins, 5 – 2.

Source:
Baseball Reference August 1
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game