Boxers / Kazuma Sanpei / Boxerbook rating

Kazuma Sanpei: Boxerbook rating

Kazuma Sanpei has a Boxerbook rating of 1376 ± 154 from 28 counted bouts, as of Oct 13, 2026. Not in a division list: inactive since Jun 2022 (no bout for 12 months).

Rating1376 ± 154
Placenot listed
Counted bouts28
Unknown opponents23 of 28
Schedule, career1188
Schedule, 36 monthsno bouts
Form, last 51.1 of 3.5
Data confidence14%
Statusinactive since Jun 2022

Rating over time

high 1806 · low 1376Jul 2012Jun 2022

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: 23 of 28 bouts.

L
Takeshi Hosaka (no page: counted as 1100)
Jun 14, 2022 · TKO 4/8 · weight ×1.00
−54
→ 1376
L
Takuya Watanabe
Oct 30, 2021 · TKO 2/8 · weight ×1.00 · opponent 1570
−35
→ 1430
W
Tomoaki Miyamoto (no page: counted as 1100)
Jun 11, 2021 · TKO 6/8 · weight ×1.00
+16
→ 1465
L
Shinnosuke Hasegawa (no page: counted as 1100)
Aug 13, 2020 · TD 6/8 · weight ×1.00
−64
→ 1449
W
Soreike Taichi (no page: counted as 1100)
Feb 13, 2020 · TKO 5/8 · weight ×1.00
+14
→ 1514
W
Toru Kiyota (no page: counted as 1100)
Sep 17, 2019 · SD 8/8 · weight ×1.00
+15
→ 1500
W
Tatsuya Otsubo (no page: counted as 1100)
Apr 12, 2019 · MD 8/8 · weight ×1.00
+16
→ 1485
W
Masayuki Awata (no page: counted as 1100)
Dec 12, 2018 · TKO 7/8 · weight ×1.00
+17
→ 1469
L
Yoshimitsu Kimura
Lost Japanese youth title
Jul 30, 2018 · TKO 5/8 · weight ×1.05 · opponent 1473
−61
→ 1452
W
Kei Iwahara (no page: counted as 1100)
Apr 10, 2018 · TKO 6/8 · weight ×1.00
+18
→ 1513
W
Ryuki Ishii (no page: counted as 1100)
Japanese youth title, 1st defence
Nov 22, 2017 · TKO 5/8 · weight ×1.05
+21
→ 1496
W
Ryusei Ishii (no page: counted as 1100)
Vacant Japanese youth super featherweight title
Aug 22, 2017 · MD 8/8 · weight ×1.05
+23
→ 1475
L
Masaru Sueyoshi
Oct 25, 2016 · TKO 8/8 · weight ×1.00 · opponent 1768
−28
→ 1452
L
Yuichiro Kasuya (no page: counted as 1100)
Feb 23, 2016 · SD 8/8 · weight ×1.00
−107
→ 1480
W
Satomi Takahata (no page: counted as 1100)
Sep 17, 2015 · MD 8/8 · weight ×1.00
+18
→ 1587
L
Masaru Sueyoshi
Feb 27, 2015 · TKO 7/8 · weight ×1.00 · opponent 1662
−82
→ 1569
L
Sakura Jun (no page: counted as 1100)
Oct 15, 2014 · TKO 1 · weight ×1.00
−156
→ 1650
W
Jun Hamana (no page: counted as 1100)
Jun 24, 2014 · UD 8/8 · weight ×1.00
+11
→ 1806
W
Anantachai Sor Poro Krungthep (no page: counted as 1100)
Mar 24, 2014 · KO 3/8 · weight ×1.00
+12
→ 1795
W
Shohei Fujimoto (no page: counted as 1100)
Dec 22, 2013 · KO 2/5 · weight ×1.00
+13
→ 1783
Show all 28 counted bouts
W
Yoshimichi Matsumoto
Nov 3, 2013 · UD 5/5 · weight ×0.90 · opponent 1500
+52
→ 1770
W
Takahiro Araki (no page: counted as 1100)
Sep 26, 2013 · UD 4/4 · weight ×0.80
+16
→ 1718
W
Naoya Nishimura (no page: counted as 1100)
Aug 6, 2013 · TKO 4/4 · weight ×1.00
+23
→ 1702
W
Masayoshi Kusaka (no page: counted as 1100)
Jun 14, 2013 · UD 4/4 · weight ×0.80
+21
→ 1680
W
Fumihiro Yoshino (no page: counted as 1100)
Apr 11, 2013 · UD 4/4 · weight ×0.80
+25
→ 1658
W
Yutaka Egawa (no page: counted as 1100)
Jan 29, 2013 · TKO 4/4 · weight ×1.00
+38
→ 1634
W
Nao Takahashi (no page: counted as 1100)
Nov 12, 2012 · MD 4/4 · weight ×0.80
+40
→ 1595
W
Kaiji Shimizu (no page: counted as 1100)
Jul 8, 2012 · UD 4/4 · weight ×0.80
+55
→ 1555

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 · Kazuma Sanpei: record and titles