Vacant IBO heavyweight title · 12 rounds

Richard
Mason
VS
Jimmy
Thunder

Thunder · UD 12/12

Oct 29, 1994 · Resorts Casino Hotel, Atlantic City, 🇺🇸

Mason going in—

Thunder going in21-5-0

Confirmation✓ one source

MethodUD

Round12 of 12

TitleVacant IBO heavyweight title

Sources

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

✓