Junto Nakatani (born 2 January 1998 in Inabe, Mie) is a Japanese professional boxer. Per Wikipedia, he has held world championships in three weight classes, including the WBO flyweight title from 2020 to 2022, the WBO junior bantamweight title in 2023, and the unified WBC and IBF bantamweight titles between 2024 and 2025, plus The Ring bantamweight title in 2025.
Nakatani debuted in April 2015, won his first world title in 2020, scored The Ring’s Knockout of the Year in 2023 against Andrew Moloney, unified at bantamweight in 2025, then challenged Naoya Inoue for the undisputed super-bantamweight title in May 2026, losing for the first time.
BoxRec-style profile
- Birth name: Junto Nakatani
- Born: January 2, 1998 — Inabe, Mie, Japan
- Nationality: Japanese
- Height: 5 ft 8 in (173 cm)
- Reach: 68.5 in (174 cm)
- Stance: Southpaw
- Pro debut: 26 Apr 2015 (Win by TKO vs Junichi Itoga)
- Last bout: 2 May, 2026 (Loss by UD vs Naoya Inoue)
- Total rounds boxed: 176 (summed from the bout table below)
- Divisions: Flyweight, Super flyweight, Bantamweight, Super bantamweight
- KO percentage: 75.0% (24 KO wins in 32 wins)
- Titles held (major, with reign dates): WBO flyweight title November 6, 2020 – October 27, 2022 (won vacant title from Giemel Magramo; vacated to move up); WBO junior bantamweight title May 20, 2023 – 2024 (won vacant title from Andrew Moloney); WBC bantamweight title February 24, 2024 – August 6, 2025 (won from Alexandro Santiago; vacated to move up), unified with the IBF bantamweight title June 8, 2025 and The Ring bantamweight title in 2025
- Born: January 2, 1998 — Inabe, Mie, Japan
- Nationality: Japanese
- Height: 5 ft 8 in (173 cm)
- Reach: 68.5 in (174 cm)
- Stance: Southpaw
- Divisions: Flyweight, Super flyweight, Bantamweight, Super bantamweight
Record at a glance
- Total bouts: 33
- Wins: 32
- Wins by KO: 24
- Losses: 1
- Losses by KO: 0
- Draws: 0
- No contests: 0
- Born: January 2, 1998 — Inabe, Mie, Japan
- Nationality: Japanese
- Height: 5 ft 8 in (173 cm)
- Reach: 68.5 in (174 cm)
- Stance: Southpaw
- Divisions: Flyweight, Super flyweight, Bantamweight, Super bantamweight
Fight-by-fight record
| No. | Date | Opponent | Result | Method | Round/Time | Venue / Notes |
|---|---|---|---|---|---|---|
| 1 | 26 Apr 2015 | Junichi Itoga | Win | TKO | 1 (4), 1:33 | Industrial Hall, Gifu, Japan |
| 2 | 17 Jul 2015 | Akira Kokubo | Win | TKO | 4 (4), 1:06 | Korakuen Hall, Tokyo, Japan |
| 3 | 22 Nov 2015 | Magnum Nishida | Win | UD | 4 | Shinjuku Face, Tokyo, Japan |
| 4 | 28 Jan 2016 | Tetsuya Tomioka | Win | TKO | 3 (4), 2:17 | Korakuen Hall, Tokyo, Japan |
| 5 | 28 Apr 2016 | Anirut Chomyong | Win | TKO | 1 (4), 1:43 | Korakuen Hall, Tokyo, Japan |
| 6 | 27 Jul 2016 | Shu Muramatsu | Win | TKO | 2 (4), 0:15 | Korakuen Hall, Tokyo, Japan |
| 7 | 4 Oct 2016 | Satoshi Tanaka | Win | RTD | 2 (4), 3:00 | Korakuen Hall, Tokyo, Japan |
| 8 | 13 Nov 2016 | Daisuke Yamada | Win | TKO | 1 (5), 1:40 | Korakuen Hall, Tokyo, Japan |
| 9 | 23 Dec 2016 | Masamichi Yabuki | Win | UD | 4 | Korakuen Hall, Tokyo, Japan |
| 10 | 19 Feb 2017 | Atiwit Munyapho | Win | TKO | 2 (6), 0:43 | Shinjuku Face, Tokyo, Japan |
| 11 | 16 Apr 2017 | Joel Taduran | Win | TKO | 4 (6), 0:53 | Messe Mie, Tsu, Japan |
| 12 | 16 May 2017 | Yuma Kudo | Win | MD | 6 | Korakuen Hall, Tokyo, Japan |
| 13 | 23 Aug 2017 | Seigo Yuri Akui | Win | TKO | 6 (8), 2:01 | Korakuen Hall, Tokyo, Japan — ★ Title fight — Won inaugural Japanese Youth flyweight title |
| 14 | 20 Jan 2018 | Jeronil Borres | Win | KO | 1 (8), 1:56 | Korakuen Hall, Tokyo, Japan |
| 15 | 15 Apr 2018 | Mario Andrade | Win | TD | 8 (10), 0:43 | Yokohama Arena, Yokohama, Japan |
| 16 | 7 Jul 2018 | Dexter Alimento | Win | KO | 3 (10), 0:36 | Korakuen Hall, Tokyo, Japan |
| 17 | 6 Oct 2018 | Shun Kosaka | Win | UD | 8 | Korakuen Hall, Tokyo, Japan |
| 18 | 2 Feb 2019 | Naoki Mochizuki | Win | TKO | 9 (10), 0:23 | Korakuen Hall, Tokyo, Japan — ★ Title fight — Won vacant Japanese flyweight title |
| 19 | 1 Jun 2019 | Philip Luis Cuerdo | Win | KO | 1 (10), 1:23 | Korakuen Hall, Tokyo, Japan |
| 20 | 5 Oct 2019 | Milan Melindo | Win | TKO | 6 (10), 2:02 | Korakuen Hall, Tokyo, Japan |
| 21 | 6 Nov 2020 | Giemel Magramo | Win | TKO | 8 (12), 2:10 | Korakuen Hall, Tokyo, Japan — ★ Title fight — Won vacant WBO flyweight title |
| 22 | 10 Sep 2021 | Ángel Acosta | Win | TKO | 4 (12), 2:28 | Casino del Sol, Tucson, Arizona, U.S. — ★ Title fight — Retained WBO flyweight title |
| 23 | 9 Apr 2022 | Ryota Yamauchi | Win | TKO | 8 (12), 2:20 | Super Arena, Saitama, Japan — ★ Title fight — Retained WBO flyweight title |
| 24 | 1 Nov 2022 | Francisco Rodríguez Jr. | Win | UD | 10 | Super Arena, Saitama, Japan |
| 25 | 20 May 2023 | Andrew Moloney | Win | KO | 12 (12), 2:42 | MGM Grand Garden Arena, Paradise, Nevada, U.S. — ★ Title fight — Won vacant WBO junior-bantamweight title |
| 26 | 18 Sep 2023 | Argi Cortes | Win | UD | 12 | Ariake Arena, Tokyo, Japan — ★ Title fight — Retained WBO junior-bantamweight title |
| 27 | 24 Feb 2024 | Alexandro Santiago | Win | TKO | 6 (12), 1:12 | Ryōgoku Kokugikan, Tokyo, Japan — ★ Title fight — Won WBC bantamweight title |
| 28 | 20 Jul 2024 | Vincent Astrolabio | Win | KO | 1 (12), 2:37 | Ryōgoku Kokugikan, Tokyo, Japan — ★ Title fight — Retained WBC bantamweight title |
| 29 | 14 Oct 2024 | Petch Sor Chitpattana | Win | TKO | 6 (12), 2:59 | Ariake Arena, Tokyo, Japan — ★ Title fight — Retained WBC bantamweight title |
| 30 | 24 Feb 2025 | David Cuellar Contreras | Win | KO | 3 (12), 2:55 | Ariake Arena, Tokyo, Japan — ★ Title fight — Retained WBC bantamweight title |
| 31 | 8 Jun 2025 | Ryosuke Nishida | Win | RTD | 6 (12), 3:00 | Ariake Colosseum, Tokyo, Japan — ★ Title fight — Retained WBC bantamweight title; Won IBF and vacant The Ring bantamweight titles |
| 32 | 27 Dec 2025 | Sebastian Hernandez | Win | UD | 12 | Mohammed Abdo Arena, Riyadh, Saudi Arabia |
| 33 | 2 May, 2026 | Naoya Inoue | Loss | UD | 12 | Tokyo Dome, Tokyo, Japan — ★ Title fight — For WBA (Super), WBC, IBF, WBO and The Ring super bantamweight titles |
Titles & notes
Major title reigns (start–end): WBO flyweight title November 6, 2020 – October 27, 2022 (won vacant title from Giemel Magramo; vacated to move up); WBO junior bantamweight title May 20, 2023 – 2024 (won vacant title from Andrew Moloney); WBC bantamweight title February 24, 2024 – August 6, 2025 (won from Alexandro Santiago; vacated to move up), unified with the IBF bantamweight title June 8, 2025 and The Ring bantamweight title in 2025
- 23 Aug 2017 vs Seigo Yuri Akui: Won inaugural Japanese Youth flyweight title
- 2 Feb 2019 vs Naoki Mochizuki: Won vacant Japanese flyweight title
- 6 Nov 2020 vs Giemel Magramo: Won vacant WBO flyweight title
- 10 Sep 2021 vs Ángel Acosta: Retained WBO flyweight title
- 9 Apr 2022 vs Ryota Yamauchi: Retained WBO flyweight title
- 20 May 2023 vs Andrew Moloney: Won vacant WBO junior-bantamweight title
- 18 Sep 2023 vs Argi Cortes: Retained WBO junior-bantamweight title
- 24 Feb 2024 vs Alexandro Santiago: Won WBC bantamweight title
- 20 Jul 2024 vs Vincent Astrolabio: Retained WBC bantamweight title
- 14 Oct 2024 vs Petch Sor Chitpattana: Retained WBC bantamweight title
- 24 Feb 2025 vs David Cuellar Contreras: Retained WBC bantamweight title
- 8 Jun 2025 vs Ryosuke Nishida: Retained WBC bantamweight title; Won IBF and vacant The Ring bantamweight titles
- 2 May, 2026 vs Naoya Inoue: For WBA (Super), WBC, IBF, WBO and The Ring super bantamweight titles
Record source: Wikipedia professional boxing record table (cross-checked against the bout list), retrieved 2026-10-28.
