6 rounds

Shorty
Ahearn
VS
Philadelphia
Jack O'Brien

O'Brien · PTS 6/6

Jul 21, 1899 · Dearborn A.C., Chicago, 🇺🇸

Ahearn going in—

O'Brien going in26-4-13

Confirmation✓ one source

MethodPTS

Round6 of 6

Sources

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

✓