Boxers / Jin Sasaki / Boxerbook rating

Jin Sasaki: Boxerbook rating

Jin Sasaki is #21 in the Boxerbook welterweight list with a rating of 1943 ± 119 from 25 counted bouts, as of Oct 13, 2026.

Rating1943 ± 119
Place#21 in Welterweight
Counted bouts25
Unknown opponents14 of 25
Schedule, career1370
Schedule, 36 months1597
Form, last 53.0 of 3.5
Data confidence44%
Statusactive · last bout Sep 21, 2026

Rating over time

high 1956 · low 1566Aug 2018Oct 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: 14 of 25 bouts.

W
Kavuma Ssemujju
Won WBO Asia Pacific and Japanese welterweight titles
Sep 21, 2026 · KO 6/10 · weight ×1.10 · opponent 1595
+12
→ 1943
W
Ku Tanaka
OPBF welterweight title
May 2, 2026 · SD 10/10 · weight ×1.10 · opponent 1714
+21
→ 1930
W
Marlon Paniamogan (no page: counted as 1100)
Feb 19, 2026 · TKO 2/8 · weight ×1.00
+3
→ 1909
L
Brian Norman Jr.
For WBO welterweight title
Jun 19, 2025 · KO 5/12 · weight ×1.65 · opponent 2029
−50
→ 1907
W
Yoshiki Sakai
WBO Asia Pacific title, 5th defence
Jan 24, 2025 · UD 12/12 · weight ×1.16 · opponent 1315
+3
→ 1956
W
Qamil Balla
For WBO Asia Pacific and OPBF welterweight titles
Sep 3, 2024 · TKO 7/12 · weight ×1.05 · opponent 1707
+21
→ 1953
W
Joe Noynay
For WBO Asia Pacific and vacant OPBF welterweight title
May 16, 2024 · TKO 5/12 · weight ×1.16 · opponent 1717
+29
→ 1932
W
Taito Hoshi (no page: counted as 1100)
WBO Asia Pacific title, 2nd defence
Jul 8, 2023 · TKO 11/12 · weight ×1.50
+5
→ 1903
W
Keita Obara
For WBO Asia Pacific welterweight title
Apr 8, 2023 · TKO 3/12 · weight ×1.16 · opponent 1787
+46
→ 1899
W
Ryōta Toyoshima
WBO Asia Pacific welterweight title
Jan 14, 2023 · TKO 1/12 · weight ×1.50 · opponent 1724
+70
→ 1852
W
Patiparn Kronglarn (no page: counted as 1100)
Nov 15, 2022 · TKO 3/8 · weight ×1.00
+7
→ 1782
D
Kotaro Sekine
Jul 9, 2022 · MD 6/6 · weight ×0.90 · opponent 1646
−16
→ 1775
W
Marcus Smith (no page: counted as 1100)
Apr 22, 2022 · TKO 5/8 · weight ×1.00
+8
→ 1792
L
Andy Hiraoka
For vacant Japanese and vacant WBO Asia Pacific super lightweight titles
Oct 19, 2021 · TKO 11/12 · weight ×1.16 · opponent 1875
−82
→ 1784
W
Kaiki Yuba
Japanese youth super lightweight title
Jul 17, 2021 · KO 2/8 · weight ×1.05 · opponent 1753
+90
→ 1866
W
Asao Ishiwaki (no page: counted as 1100)
Vacant Japanese youth super lightweight title
Dec 26, 2020 · TKO 3/8 · weight ×1.05
+14
→ 1776
W
Tatsuya Miyazaki (no page: counted as 1100)
Nov 23, 2020 · KO 1 · weight ×1.00
+15
→ 1762
W
Shun Akaiwa (no page: counted as 1100)
Aug 31, 2020 · KO 1/6 · weight ×1.00
+16
→ 1748
W
Tetsuya Kondo (no page: counted as 1100)
Sep 26, 2019 · TKO 1/4 · weight ×1.00
+18
→ 1731
W
Hikari Sato (no page: counted as 1100)
Aug 6, 2019 · UD 4/4 · weight ×0.80
+16
→ 1713
Show all 25 counted bouts
W
Vegeta Ishikawa (no page: counted as 1100)
Jun 11, 2019 · TKO 3/4 · weight ×1.00
+23
→ 1697
W
Sirisak Pinpasit (no page: counted as 1100)
Apr 21, 2019 · KO 2 · weight ×1.00
+28
→ 1674
W
Naoyuki Tsumoto (no page: counted as 1100)
Feb 8, 2019 · TKO 1/4 · weight ×1.00
+35
→ 1646
W
Ryo Kasai (no page: counted as 1100)
Nov 7, 2018 · KO 3/4 · weight ×1.00
+45
→ 1611
W
Takeshi Kato (no page: counted as 1100)
Aug 24, 2018 · TKO 2/4 · weight ×1.00
+66
→ 1566

Publishers and Boxerbook

Consensus: not in the publishers’ top 15 in Welterweight (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
#21

How the Boxerbook rating works · Jin Sasaki: record and titles