Leonid Kostin

LEONID KOSTIN

0-30% win rate

FIGHTER IDENTITY

Rajadamnern World Series

Organization

RWS
RUS

Nationality

Russia

Birthplace

Kemerovo

Russia

Sport / Status

Muay Thai · Active

Weight class

Welterweight

Height

175 cm (5'9")

Reach

170 cm (67")

Career record

0-1 (partial)

Fight history (3)

Loss
vs Peemai Por. KobkueaKnockout / Technical Knockout (R1)RWS Fight Night — 18/07/2026
Loss
vs Narongchai ChaithongUnanimous DecisionRWS - April 25, 2026 — 25/04/2026
Loss
vs Petchthongchai Sor. SommaiUnanimous Decision (R3)RWS - April 25, 2026 — 25/04/2026

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Same sport — matched first by weight class, then by nationality, with top records filling any gaps.

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