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Japan · Bantamweight
Kazuto Ioka
- 37 years old
- 5′5″
- WBC No. 8
- WBA No. 10
- IBF No. 7
- IBO No. 4
- Wins
- 32
- Losses
- 5
- Draws
- 1
- KOs
- 17
53% of wins inside the distance
Form
Fights
Before that
- WinMaikel Ordosgoitti31 Dec 2025KO · 4 (10)
- LossFernando Martinez11 May 2025UD · 12
- LossFernando Martinez7 Jul 2024 · WBA and IBF world titles · Super flyweightUD · 12
- WinJosber Perez31 Dec 2023KO · 7 (12)
Show the next 5 fights
- WinJoshua Franco24 Jun 2023UD · 12
- DrawJoshua Franco31 Dec 2022 · WBO world title · Super flyweightMD · 12
- WinDonnie Nietes13 Jul 2022 · WBO world title · Super flyweightUD · 12
- WinRyoji Fukunaga31 Dec 2021 · WBO world title · Super flyweightUD · 12
- WinFrancisco Rodriguez1 Sept 2021 · WBO world title · Super flyweightUD · 12
28 older fights · BoxRec profile ↗
Rankings
Best: No. 4
- WBC
8
ranked 8th–9th since Sep 2026
- WBA
10
ranked 9th–10th since Aug 2026
- IBF
7
ranked 7th–8th since Jun 2026
- IBO
4
tracked since Sep 2026
Not ranked by the WBO.
World titles
8 championship reigns · 3 sanctioning bodies · 4 weight classes
Super flyweight
- WBA2023 – 2024
- WBO2019 – 2023
Flyweight
- WBA2016 – 2017
- WBA2015 – 2016
Light flyweight
- WBA2014
- WBA2012 – 2014
Minimumweight
- WBA2012
- WBC2011 – 2012
From 2011 to 2024.
Every date, reign by reign
Past reigns
- WBASuper flyweight24 Jun 2023 – 7 Jul 2024 · 1 year 1 month↗
- WBOSuper flyweight19 Jun 2019 – 15 Feb 2023 · 3 years 8 months↗
- WBAFlyweight · regular champion14 Sep 2016 – 9 Nov 2017 · 1 year 2 months↗
- WBAFlyweight · regular champion22 Apr 2015 – 14 Sep 2016 · 1 year 5 months↗
- WBALight flyweight · regular champion14 Jan 2014 – 28 Feb 2014 · 1 month↗
- WBALight flyweight · regular champion31 Dec 2012 – 14 Jan 2014 · 1 year 1 month↗
- WBAMinimumweight24 Jun 2012 – 2 Oct 2012 · 4 months↗
- WBCMinimumweight11 Feb 2011 – 1 Jul 2012 · 1 year 5 months↗
Current titles: the sanctioning bodies' official rankings. History and dates: Wikipedia's lists of world champions (CC BY-SA 4.0), re-read every week.
Movement
Places gained or lost with each sanctioning body. Green is up, red is down, “New” marks an entry into the rankings, and a dot a period with no published archive.
| Body | The boxer's place in the sanctioning body's official ranking. “C”: world champion, above No. 1. An interim champion is marked as such (“Interim”, “Int.”): not the reigning champion. No. 1 is the leading contender for the title. | 1M | 3M | 6M | 1Y |
|---|---|---|---|---|---|
| WBC | 8 | · | · | · | · |
| WBA | 10 | 1 | · | · | · |
| IBF | 7 | — | 1 | — | 4 |
| IBO | 4 | · | · | · | · |
Trajectory, body by body
WBC
No. 8 since Oct 2026tracked since Sep 2026
WBA
No. 10 since Sep 2026 · best No. 9 (Aug 2026)tracked since Aug 2026
IBF
No. 7 since Jul 2026 · best No. 6 (Feb 2015)tracked since Feb 2014
IBO
No. 4tracked since Sep 2026
See the changes in detail
| Sep 2026 | No. 9 |
| Oct 2026 | No. 8 |
| Aug 2026 | No. 9 |
| Sep 2026 | No. 10 |
| Feb 2014 | No. 11 |
| Mar 2014 | No. 9 |
| Apr 2014 | No. 10 |
| Jan 2015 | No. 7 |
| Feb 2015 | No. 6 |
| Apr 2015 | dropped out of the ranking |
| Jun 2024 | No. 6 |
| Jul 2024 | No. 7 |
| Aug 2024 | No. 6 |
| Oct 2024 | dropped out of the ranking |
| Sep 2025 | No. 11 |
| Nov 2025 | No. 12 |
| Dec 2025 | No. 8 |
| Feb 2026 | No. 7 |
| Mar 2026 | dropped out of the ranking |
| Jun 2026 | No. 8 |
| Jul 2026 | No. 7 |
| Sep 2026 | No. 4 |