20 rounds

Lachie
Thomson
VS
Philadelphia
Jack O'Brien

O'Brien · KO 2/20

Mar 20, 1901 · Ginnetts Circus, Newcastle, 🇬🇧

Thomson going in—

O'Brien going in41-5-15

Confirmation✓ one source

MethodKO

Round2 of 20

Sources

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

✓