World light-heavyweight title · 20 rounds

Bob
Fitzsimmons
VS
Philadelphia
Jack O'Brien

O'Brien · RTD 13/20

Dec 20, 1905 · Woodward's Pavilion, San Francisco, 🇺🇸

Fitzsimmons going in68-9-16

O'Brien going in132-8-20

Confirmation✓✓ two sources

MethodRTD

Round13 of 20

TitleWorld light-heavyweight title

NotesТКО13

Sources

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

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English Wikipedia
side a · observed 2026-10-11
en.wikipedia.org/wiki/Bob_Fitzsimmons

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