IG
Minimumweight · Japan

Takeshi Ishii

12-1-0 9 KO · 2022–2026

Updated · Sources: Wikidata, English Wikipedia, Wikipedia (ja), +2

Takeshi Ishii is a minimumweight boxer from Japan, born Oct 26, 1999. Record 12-1-0 with 9 knockouts over 2022–2026. Takeshi Ishii last fought Wilfredo Mendez on Sep 2, 2026 and won by KO in round 1 of 12.

Also: 石井武志
BornOct 26, 1999
Country🇯🇵 Japan
StanceOrthodox
Reach156 cm
DebutMay 19, 2022
Career2022–2026
Rounds boxed54
KO share75%
Born inUkiha, Fukuoka, Japan
TitlesWBA mini-flyweight title 2026
Boxerbook rating#5 in Minimumweight · 1797 ± 166Why here ›
Confirmed bouts13 of 13 · 13 official

Record and next fight

Record
12-1-0, 9 KOs · 2022–2026
Next fight
No next fight confirmed

Last result

W
Wilfredo Mendez 🇺🇸
For vacant WBA mini-flyweight title
KO 1/12 · Yokohama Buntai, Kanagawa, 🇯🇵
2026-09-02 ›
official ★

The record

13 bouts, 2022–2026, newest first. Records under each bout are both boxers going in.

Bouts by source: English Wikipedia · 13, Wikipedia (ja) · 13, Japan Boxing Commission — 試合報告書 · 13, WBA Fights Master Scores · 1

W
Wilfredo Mendez 🇺🇸
For vacant WBA mini-flyweight title
KO 1/12 · Yokohama Buntai, Kanagawa, 🇯🇵
Ishii 11-1-0 · Mendez 20-3-2
2026-09-02 ›
official ★
W
Jake Amparo
Retained OPBF mini-flyweight title
UD 10/10 · Korakuen Hall, Tokyo, 🇯🇵
Ishii 10-1-0 · Amparo —
2025-09-09 ›
official ★
W
Shunsuke Isa
Retained OPBF mini-flyweight title
KO 5/12 · Korakuen Hall, Tokyo, 🇯🇵
Ishii 9-1-0 · Isa —
2025-03-11 ›
official ★
W
John Kevin Jimenez
Won vacant OPBF mini-flyweight title
UD 12/12 · Korakuen Hall, Tokyo, 🇯🇵
Ishii 8-1-0 · Jimenez —
2024-09-25 ›
official ★
W
Prachanon Mingorancha
KO 3/8 · Korakuen Hall, Tokyo, 🇯🇵
Ishii 7-1-0 · Mingorancha —
2024-07-09 ›
official ★
L
Rito Dante
SD 8/8 · Korakuen Hall, Tokyo, 🇯🇵
Ishii 7-0-0 · Dante —
2023-09-12 ›
official ★
W
Natchaphon Wichaita
KO 2/8 · Korakuen Hall, Tokyo, 🇯🇵
Ishii 6-0-0 · Wichaita —
2023-06-29 ›
official ★
W
Jinnawat Rienpith
TKO 1/6 · Korakuen Hall, Tokyo, 🇯🇵
Ishii 5-0-0 · Rienpith —
2023-03-14 ›
official ★
W
Masashi Ikeda
TKO 1/5 · Korakuen Hall, Tokyo, 🇯🇵
Ishii 4-0-0 · Ikeda —
2022-12-17 ›
official ★
W
Kenta Kawakami
UD 4/4 · Korakuen Hall, Tokyo, 🇯🇵
Ishii 3-0-0 · Kawakami —
2022-11-03 ›
official ★
W
Andy Atsushi
TKO 1/4 · Korakuen Hall, Tokyo, 🇯🇵
Ishii 2-0-0 · Atsushi —
2022-09-27 ›
official ★
W
Yoshiki Iwai
TKO 4/4 · Shinjuku Face, Tokyo, 🇯🇵
Ishii 1-0-0 · Iwai —
2022-08-02 ›
official ★
W
Takato Fukuda
TKO 2/4 · Korakuen Hall, Tokyo, 🇯🇵
Ishii 0-0-0 · Fukuda —
2022-05-19 ›
official ★

Ratings now

5
Ring · Minimumweight
as of 2026-10-04
6
TBRB · Minimumweight
as of 2026-10-11
C
WBA · Minimumweight
Regular champion
as of 2026-09-30
7
WBO · Minimumweight
as of 2026-09-01

World titles

No world title reigns recorded.

Facts

What is Takeshi Ishii's record?
Takeshi Ishii's professional record is 12-1-0 with 9 knockouts.
When is Takeshi Ishii's next fight?
No next fight is confirmed as of 18 Oct 2026.
Who did Takeshi Ishii fight last?
Takeshi Ishii last fought Wilfredo Mendez on Sep 2, 2026 and won by KO in round 1 of 12.

Promoter

Ohashi Promotions

Sources

Boxerbook ID 1778 · permanent link boxerbook.com/id/1778. Wikidata (CC0), English Wikipedia (CC BY-SA), publisher rankings, photo from the Instagram profile. Last fetched: 2026-10-11. Spot a mistake? Every bout page has a link to report it.

Wikipedia ↗Wikidata ↗Instagram ↗