VS
Nov 29 2026
Sunday

Kokugikan, Tokyo, Japan

12 round contest @ Bantamweight
11-1-0

Estimated Ringwalk:

2026-11-29T11:00:00Z ()

broadcast start time:

US - N/A / UK - N/A

13-0-3

Belts on The Line

WBA World Bantamweight Championship

The tape

29
Age
30
5' 6" / 168 cm
Height
5' 5" / 166 cm
69.7" / 177 cm
Reach
64.6" / 164 cm
Southpaw (L)
Stance
Orthodox (R)

Full record

SD 12TKO 8TD-M 5KO 1UD 10
Form
SD 12UD 12UD 12TKO 4UD 10
11
Wins
13
9
By KO
8
82
KO%
62
1
Losses
0
0
Stopped
0
0
Draws
3
2022
Debut
2018
63
Pro rounds
114

Current rankings @ Bantamweight

4
Box.Live
1
4
The Ring
1
-
WBA
1
-
WBC
-
-
WBO
-
-
IBF
-

Riku Masuda vs Seiya Tsutsumi preview


When is Masuda vs Tsutsumi ii?

Riku Masuda will face the challenge of Seiya Tsutsumi on Sunday, November 29th, 2026, at Kokugikan, Tokyo.

The fight will be contested over 12 rounds in the Bantamweight division, which means the weight limit will be 118 pounds (8.4 stone or 53.5 kg).

This contest is for the WBA bantamweight championship of the world.

Masuda will be defending his WBA World Bantamweight Championship for the first time. He won this belt against Daigo Higa in July 2026. He had held this belt for 2 months and 25 days.

Also on the undercard will be David Jimenez's and Seigo Yuri Akui's contest for the WBA World Super Flyweight championship, and Kenshiro Teraji's and Jassiel Ramon Amador Gamez's bout for the WBO World Junior Bantamweight belt.

Masuda vs Tsutsumi ii stats

Riku Masuda steps into the ring with a record of 11 wins, 1 loss, and 0 draws, 9 of those wins coming by way of knockout.

Seiya Tsutsumi will make his way to the ring with an unblemished record of 13 wins and 3 draws, with 8 of those by knockout.

The stats suggest Masuda has an advantage in power over Tsutsumi, with a 82% knockout percentage compared to Tsutsumi's 62%.

Riku Masuda is the younger man by 1 year, at 29 years old.

Masuda has a height advantage of 1 inch over Tsutsumi. This also extends to a 5-inch reach advantage.

Riku Masuda fights out of the southpaw stance, while Seiya Tsutsumi is an orthodox fighter.

Masuda is the less experienced professional fighter, having had 4 fewer fights, and made his debut in 2022, 4 years and 3 months later than Tsutsumi, whose first professional fight was in 2018. He has fought 51 fewer professional rounds, totaling 63 compared to Tsutsumi's 114.

Riku Masuda goes into the fight ranked number 4 by The Ring at bantamweight.

Seiya Tsutsumi is currently ranked number 1 by the WBA, and 1 by The Ring in the 118lb division.

Masuda vs Tsutsumi ii form

Masuda has beaten 4 of his last 5 opponents, stopping 2 of them, going the distance twice.

In his last fight, he beat Daigo Higa on July 20, 2026, by split decision in their WBA World Bantamweight championship fight at Kokugikan, Tokyo, Japan.

Prior to that, he had beaten Nonito Donaire on March 15, 2026, by technical knockout in the 8th round in their WBA World Bantamweight final eliminator fight at Yokohama Buntai, Yokohama.

Going into that contest, he had won against Jose Calderon Cervantes on November 24, 2025, by in the 5th round at Toyota Arena Tokyo, Koto-Ku.

Before that, he had beaten Jonas Sultan on February 24, 2024, by knockout in the 1st round at Kokugikan, Tokyo.

He had been beaten by Seiya Tsutsumi on August 30, 2023, by unanimous decision in their 10 round contest at Korakuen Hall, Tokyo.

Tsutsumi remains undefeated as a professional, stopping 1 of his last 5 opponents.

In his last fight, he defeated Nonito Donaire on December 17, 2025, by split decision in their WBA World Bantamweight championship fight at Kokugikan, Tokyo, Japan.

Prior to that, he had drawn with Daigo Higa on February 24, 2025 in their 12 round contest at Ariake Arena, Koto-Ku.

Going into that contest, he had defeated Takuma Inoue on October 13, 2024, by unanimous decision in their WBA World Bantamweight championship fight at Ariake Arena, Tokyo.

Before that, he had won against Weerawat Noolae on July 7, 2024, by technical knockout in the 4th round at Kokugikan, Tokyo.

He had defeated Kazuki Anaguchi on December 26, 2023, by unanimous decision in their 10 round contest at Korakuen Hall, Tokyo.

Activity check

In terms of recent activity, Seiya Tsutsumi has been fighting more than Riku Masuda.

Riku Masuda last fought 2 months and 24 days ago, while Seiya Tsutsumi's last outing was 9 months and 27 days ago.

Masuda's last 5 fights have come over a period of 3 years, 2 months and 30 days, which means he has been fighting approximately every 7 months and 25 days. In those fights, he fought a total of 36 rounds, meaning that they have lasted 7.2 rounds on average.

Tsutsumi's last 5 fights have come over a period of 2 years, 11 months and 3 days, meaning he has been fighting on average every 7 months and 1 day. In those fights, he fought a total of 50 rounds, meaning that they have lasted 10 rounds on average.

What time does Masuda vs Tsutsumi ii start?

The fighters are expected to ringwalk at around 11:00 AM UTC at Kokugikan, Tokyo, Japan, which is 6:00 AM EST or 3:00 AM PST on the West Coast of America, or 11:00 AM GMT in the UK.

What are the odds on Masuda vs Tsutsumi ii?

Sorry, we couldn’t find any odds for Masuda vs Tsutsumi ii yet. If odds are not available initially after the fight is announced, bookmakers usually release them closer to the day of the fight.

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