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Bantamweight · Japan

Seiya Tsutsumi

18-0-3 12 KO · 2018–2025

Seiya Tsutsumi is a bantamweight boxer from Japan, born Dec 24, 1995. Record 18-0-3 with 12 knockouts over 2018–2025. World titles: WBA bantamweight (2025–2026), WBA bantamweight (2024–2025). Seiya Tsutsumi last fought Nonito Donaire on Dec 17, 2025 and won by SD over 12 rounds. Next fight: vs Riku Masuda on Nov 29, 2026 at Tokyo.

Also: 堤聖也
BornDec 24, 1995
Country🇯🇵 Japan
StanceOrthodox
Reach164 cm
DebutMar 27, 2018
Career2018–2025
Rounds boxed138
KO share67%
Born inKumamoto, Japan
TitlesWBA bantamweight · 2024–2026
Boxerbook rating#5 in Bantamweight · 2135 ± 127Why here ›
Confirmed bouts15 of 21 · 14 official

Record and next fight

Record
18-0-3, 12 KOs · 2018–2025
Next fight
Sun, Nov 29, 2026 scheduled
vs Riku Masuda 🇯🇵
WBA "regular" bantamweight title
Tokyo, 🇯🇵 · 12 rounds
Bout page ›

Last result

W
Nonito Donaire 🇺🇸
For WBA bantamweight title
SD 12/12 · Ryogoku Kokugikan, Tokyo, 🇯🇵
2025-12-17 ›
official ★

The record

21 bouts, 2018–2025, 1 upcoming, newest first. Records under each bout are both boxers going in.

Bouts by source: English Wikipedia · 16, Wikipedia (ja) · 16, Japan Boxing Commission — 試合報告書 · 14, WBA Fights Master Scores · 3, Wikipedia (ru) · 1, ESPN — Boxing schedule · 1

Upcoming
Riku Masuda 🇯🇵
WBA "regular" bantamweight title
12 rounds · Tokyo, 🇯🇵
Tsutsumi 18-0-3 · Masuda 11-1-0
2026-11-29 ›
scheduled
W
Nonito Donaire 🇺🇸
For WBA bantamweight title
SD 12/12 · Ryogoku Kokugikan, Tokyo, 🇯🇵
Tsutsumi 17-0-3 · Donaire 43-8-0
2025-12-17 ›
official ★
D
Daigo Higa 🇯🇵
For WBA bantamweight title
UD 12/12 · Ariake Arena, Tokyo, 🇯🇵
Tsutsumi 17-0-2 · Higa 22-3-1
2025-02-24 ›
official ★
W
Takuma Inoue 🇯🇵
Won WBA bantamweight title
UD 12/12 · Ariake Arena, Tokyo, 🇯🇵
Tsutsumi 16-0-2 · Inoue 20-1-0
2024-10-13 ›
official ★
W
Weerawat Noolae
TKO 4/10 · Ryogoku Kokugikan, Tokyo, 🇯🇵
Tsutsumi 15-0-2 · Noolae —
2024-07-07 ›
official ★
W
Kazuki Anaguchi 🇯🇵
Retained Japanese bantamweight title
UD 10/10 · Ariake Arena, Tokyo, 🇯🇵
Tsutsumi 14-0-2 · Anaguchi 6-0-0
2023-12-26 ›
official ★
W
Riku Masuda 🇯🇵
2023 bantamweight tournament semi-final, Japanese bantamweight title
UD 10/10 · Korakuen Hall, 🇯🇵
Tsutsumi 12-0-2 · Masuda 3-0-0
2023-08-30 ›
official ★
W
Riku Masuda 🇯🇵
For Japanese bantamweight title
UD 10/10 · Korakuen Hall, Tokyo, 🇯🇵
Tsutsumi 12-0-2 · Masuda 3-0-0
2023-08-30 ›
✓✓ two sources
W
Hitoshi Nande
Japanese bantamweight title
TKO 7/10 · Korakuen Hall, 🇯🇵
Tsutsumi 10-0-2 · Nande —
2023-03-20 ›
official ★
W
Jin Minamide
Retained Japanese bantamweight title
TKO 9/10 · Korakuen Hall, Tokyo, 🇯🇵
Tsutsumi 10-0-2 · Minamide —
2023-03-20 ›
! sources disagree
W
Kenshin Oshima
Retained Japanese bantamweight title
TKO 9/10 · Korakuen Hall, Tokyo, 🇯🇵
Tsutsumi 9-0-2 · Oshima —
2022-10-20 ›
official ★
W
Kyosuke Sawada 🇯🇵
Won Japanese title
TKO 8/10 · Korakuen Hall, Tokyo, 🇯🇵
Tsutsumi 8-0-2 · Sawada 15-2-2
2022-06-23 ›
official ★
W
Ryan Rey Ponteras
TKO 1/8 · City Sogo Gym, Kōshi, 🇯🇵
Tsutsumi 7-0-2 · Ponteras —
2022-04-14 ›
✓ one source
D
Daigo Higa 🇯🇵
MD 10/10 · Korakuen Hall, Tokyo, 🇯🇵
Tsutsumi 7-0-1 · Higa 17-1-0
2020-10-26 ›
official ★
D
Kazuki Nakajima 🇯🇵
MD 8/8 · Korakuen Hall, Tokyo, 🇯🇵
Tsutsumi 7-0-0 · Nakajima 9-0-0
2020-01-28 ›
official ★
W
Ryan Ponteras
TKO 1/8 · Koshi City General Gymnasium, 🇯🇵
Tsutsumi 6-0-0 · Ponteras —
2019-04-14 ›
official ★
W
Jiaqi Yu
UD 6/6 · Xiedao Hotel, Beijing, 🇨🇳
Tsutsumi 5-0-0 · Yu —
2018-10-14 ›
✓ one source
W
Junpei Inamoto
TKO 3
Tsutsumi 4-0-0 · Inamoto —
2018-09-24 ›
✓ one source
W
Junpei Inamoto
TKO 3/6 · Korakuen Hall, 🇯🇵
Tsutsumi 2-0-0 · Inamoto —
2018-09-04 ›
official ★
W
Junpei Inamoto
TKO 1/6 · Korakuen Hall, Tokyo, 🇯🇵
Tsutsumi 2-0-0 · Inamoto —
2018-09-04 ›
✓ one source
Show all 22 bouts
W
Yutthana Narkprasert
KO 1/6 · Meenayothin Camp, Bangkok, 🇹🇭
Tsutsumi 1-0-0 · Narkprasert —
2018-06-17 ›
✓ one source
W
Alongkon Kaisi
KO 1/6 · Korakuen Hall, Tokyo, 🇯🇵
Tsutsumi 0-0-0 · Kaisi —
2018-03-27 ›
official ★

Ratings now

1
Ring · Bantamweight
as of 2026-07-28
4
TBRB · Bantamweight
as of 2026-10-11
1
WBA · Bantamweight
as of 2026-09-30

World titles

WBABantamweight
2025-12-01 – 2026-05-31
WBABantamweight
2024-10-13 – 2025-05-17

Facts

What is Seiya Tsutsumi's record?
Seiya Tsutsumi's professional record is 18-0-3 with 12 knockouts.
When is Seiya Tsutsumi's next fight?
Seiya Tsutsumi is scheduled to fight Riku Masuda on Nov 29, 2026 at Tokyo.
Who did Seiya Tsutsumi fight last?
Seiya Tsutsumi last fought Nonito Donaire on Dec 17, 2025 and won by SD over 12 rounds.
Which world titles has Seiya Tsutsumi held?
Seiya Tsutsumi has held 2 world title reigns: WBA bantamweight (2025–2026), WBA bantamweight (2024–2025).

Sources

Boxerbook ID 18553 · permanent link boxerbook.com/id/18553. Wikidata (CC0), English Wikipedia (CC BY-SA), publisher rankings, photo from the Instagram profile. Last fetched: 2026-10-12. Spot a mistake? Every bout page has a link to report it.

Wikipedia ↗Wikidata ↗Instagram ↗X ↗