1937 – Brooklyn OF Johnny Cooney ties the major-league record with 4 extra-base hits: 3 doubles and a triple.

On August 21, 1937 — 1937 – Brooklyn OF Johnny Cooney ties the major-league record with 4 extra-base hits: 3 doubles and a triple.


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Sources:
Baseball Reference August 21
National Pastime August 20
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game