Rankings Champions vs Belts Events Head-to-Head

SK

Sergey Kalchugin

— · Russia

5-0-0

Win methods

1wins

Decision1 · 100%

Record · 3 bouts

D

Jamshid Khudoyberganov

— · 2026

L

UD R3 · 2010

W

UD R3 · 2010

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