10 rounds

Jack
Mullen
VS
Philadelphia
Jack O'Brien

O'Brien · RTD 8/10

Oct 12, 1903 · Ginnetts Circus, Newcastle, 🇬🇧

Mullen going in—

O'Brien going in102-6-16

Confirmation✓ one source

MethodRTD

Round8 of 10

Sources

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

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