Rankings Champions vs Belts Events Head-to-Head

JK

Jason Kongolo

— · Switzerland

0-0-0

Win methods

1wins

Decision1 · 100%

Record · 2 bouts

L

Stiven Pena Esteban

UD R8 · 2026

W

UD R6 · 2026

Rating: opposition-adjusted Elo / Glicko-2, weight-class normalized. Punch stats via boxing-data.