6 rounds

Joe
Choynski
VS
Philadelphia
Jack O'Brien

O'Brien · PTS 6/6

Sep 29, 1902 · America A.C., Chicago, 🇺🇸

Choynski going in56-15-6

O'Brien going in80-5-15

Confirmation✓ one source

MethodPTS

Round6 of 6

Sources

English Wikipedia
side b · observed 2026-10-11
en.wikipedia.org/wiki/Philadelphia_Jack_O'Brien

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