10 rounds

George
Johnson
VS
Thad
Spencer

Spencer · KO 4/10

Aug 4, 1964 · Castaways Hotel and Casino, Las Vegas, Nevada

Johnson going in—

Spencer going in19-2-0

Confirmation✓ one source

MethodKO

Round4 of 10

Sources

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

✓