10 rounds

Luis
Castillo
VS
Little
Pancho

Castillo · TKO 2/10

Aug 23, 1941 · El Toreo de Cuatro Caminos, Mexico City, 🇲🇽

Castillo going in—

Pancho going in106-15-25

Confirmation✓ one source

MethodTKO

Round2 of 10

NotesCastillo was side-lined after the bout because of appendicitis, with a long recovery period, evidently he had been very seriously ill

Sources

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

✓