10 rounds

Shawn
Simmons
VS
William
Irwin

Irwin · TKO 2/10

Jul 20, 1999 · Casino Windsor, Windsor, 🇨🇦

Simmons going in—

Irwin going in27-3-0

Confirmation✓ one source

MethodTKO

Round2 of 10 · 1:57

Sources

English Wikipedia
side b · observed 2026-10-11
en.wikipedia.org/wiki/Billy_Irwin_(boxer)

✓