10 rounds

Jack
Watts
VS
Jack
Blackburn

Blackburn · TKO 9/10

Sep 6, 1915 · Columbia Theater, Indianapolis, 🇺🇸

Watts going in—

Blackburn going in92-15-21

Confirmation✓ one source

MethodTKO

Round9 of 10

Sources

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

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