4 rounds

Ryosuke
Kiuchi
VS
Seiya
Yamaguchi

Yamaguchi · UD 4

Updated Oct 14, 2026 · Sources: Japan Boxing Commission — 試合報告書

Jun 19, 2025 · Ota Ward General Gymnasium, 🇯🇵

Kiuchi going in—

Yamaguchi going in—

Confirmationofficial ★

MethodUD

Roundscheduled 4

Event

DateJun 19, 2025

VenueOta Ward General Gymnasium

Country🇯🇵 Japan

Japan Boxing Commission — 試合報告書
side neutral · observed 2026-10-14
jbc.or.jp/2025年06月19日-大田区総合体育館/

✓