4 rounds

Takekatu
Harió
VS
Yusaku
Sekishima

Sekishima · TKO 1/4

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

Apr 21, 2017 · Korakuen Hall, 🇯🇵

Harió going in—

Sekishima going in0-1-0

Confirmationofficial ★

MethodTKO

Round1 of 4 · 1:25

Event

DateApr 21, 2017

VenueKorakuen Hall

Country🇯🇵 Japan

Wikipedia (ja)
side b · observed 2026-10-12
ja.wikipedia.org/wiki/関島優作

✓

Japan Boxing Commission — 試合報告書
side neutral · observed 2026-10-14
jbc.or.jp/result/#no=2017042102

✓