10 rounds

Leonard
Dugan
VS
Thad
Spencer

Spencer · UD 10/10

Oct 20, 1962 · Portland Memorial Coliseum, Portland, Oregon

Dugan going in—

Spencer going in13-1-0

Confirmation✓ one source

MethodUD

Round10 of 10

Sources

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

✓