10 rounds

Shamus
O'Brien
VS
Benny
Leonard

Leonard · TKO 7/10

Updated Oct 11, 2026 · Sources: English Wikipedia

Mar 17, 1916 · Harlem S.C., New York City, 🇺🇸

O'Brien going in—

Leonard going in61-17-6

Confirmation✓ one source

MethodTKO

Round7 of 10

Sources

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

✓