Boxers / Kotaro Sekine / Boxerbook rating

Kotaro Sekine: Boxerbook rating

Kotaro Sekine has a Boxerbook rating of 1577 ± 177 from 12 counted bouts, as of Oct 13, 2026. Not in a division list: inactive since Jun 2025 (no bout for 12 months).

Rating1577 ± 177
Placenot listed
Counted bouts12
Unknown opponents9 of 12
Schedule, career1243
Schedule, 36 months1357
Form, last 51.6 of 3.5
Data confidence25%
Statusinactive since Jun 2025

Rating over time

high 1776 · low 1566Sep 2021Oct 2026

μ at the end of each month with a bout, and of every month while active. Red dot: latest.

Bouts behind the rating

Every counted bout, newest first: the change in μ it caused (green up, red down), its weight and the rating after it. Unknown opponents: 9 of 12 bouts.

L
Izuki Tomioka
Jun 30, 2025 · TD 6/8 · weight ×1.00 · opponent 1532
−106
→ 1577
L
Mikyo Watarai
Oct 26, 2024 · TKO 4/8 · weight ×1.00 · opponent 1696
−92
→ 1684
W
Paramin Senpack (no page: counted as 1100)
Jun 7, 2024 · KO 1/8 · weight ×1.00
+11
→ 1776
W
Al Toyogon (no page: counted as 1100)
Jan 26, 2024 · TKO 6 · weight ×1.00
+12
→ 1764
W
Reiji Kodama (Misako) (no page: counted as 1100)
Sep 22, 2023 · UD 8/8 · weight ×1.00
+13
→ 1752
W
Chong-hae Lee (no page: counted as 1100)
Jul 20, 2023 · TKO 3/8 · weight ×1.00
+15
→ 1738
W
Ryota Miyoshi (no page: counted as 1100)
Apr 16, 2023 · KO 2/6 · weight ×1.00
+16
→ 1724
W
Kitipon Monkonsawattasem (no page: counted as 1100)
Nov 17, 2022 · TKO 2/6 · weight ×1.00
+18
→ 1707
D
Jin Sasaki
Jul 9, 2022 · MD 6/6 · weight ×0.90 · opponent 1792
+43
→ 1689
W
Genki Yamashita (no page: counted as 1100)
Feb 6, 2022 · KO 2/4 · weight ×1.00
+35
→ 1646
W
Takuro Narumi (no page: counted as 1100)
Dec 19, 2021 · TKO 1/4 · weight ×1.00
+45
→ 1611
W
Daiki Yokota (no page: counted as 1100)
Sep 22, 2021 · TKO 2/4 · weight ×1.00
+66
→ 1566

Publishers and Boxerbook

Consensus: no publisher lists for the division (a list without them counts as 16).

WBC
not in top 15
WBA
not in top 15
IBF
not in top 15
WBO
not in top 15
Ring
not in top 15
TBRB
not in top 15
Boxerbook
not listed

How the Boxerbook rating works · Kotaro Sekine: record and titles