4 rounds

Jan
Marsalek
VS
Pierce
O'Leary

O'Leary · TKO 2/4

Jun 25, 2021 · Bolton Whites Hotel (De Vere Whites), Bolton, 🇬🇧

Marsalek going in—

O'Leary going in6-0-0

Confirmation✓ one source

MethodTKO

Round2 of 4 · 2:30

Sources

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

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