Ishii vs Mendez

Who won Ishii vs Mendez?

Takeshi Ishii beat Wilfredo Mendez by knockout in the 1st round on Wednesday, September 2nd, 2026, at Yokohama Buntai, Yokohama.

The fight was scheduled to take place over 12 rounds in the Minimumweight division, which meant the weight limit was 105 pounds (7.5 stone or 47.6 kg).

This contest was for the WBA minimumweight championship of the world.

Ishii's captured the WBA World Minimumweight Championship, winning the belt against in this fight. He had held this belt for 10 days.

This fight appeared on the undercard of Daiya Kira's and Carlos Canizales' clash for the WBA World Light Flyweight championship.

Ishii vs Mendez stats

Takeshi Ishii stepped into the ring with a record of 11 wins, 1 loss, and 0 draws, 8 of those wins coming by way of knockout.

Wilfredo Mendez made his way to the ring with a record of 20 wins, 3 losses and 2 draws, with 6 of those wins by knockout.

The stats suggested Ishii had a massive power advantage over Mendez, boasting a 73% knockout percentage compared to Mendez's 30%.

Takeshi Ishii was the younger man by 3 years, at 26 years old.

Mendez had a height advantage of 4 inches over Ishii. That also extended to a 2-inch reach advantage.

Takeshi Ishii fought out of the orthodox stance, while Wilfredo Mendez was a southpaw.

Ishii was the less experienced professional fighter, having had 13 fewer fights, and made his debut in 2022, 5 years and 10 months later than Mendez, whose first professional fight was in 2016. He had fought 125 fewer professional rounds, totaling 54 compared to Mendez's 179.

Takeshi Ishii went into the fight ranked number 1 by the WBA, and 9 by the WBO at minimumweight.

Wilfredo Mendez was ranked number 2 by the WBA in the 105lb division.

Ishii vs Mendez form

Mendez had beaten 3 of his last 5 opponents, stopping 1 of them, going the distance twice.

In his last fight leading up to this contest, he had beaten Nelvis Rodriguez on February 21, 2025, by unanimous decision in their 8 round contest at Cancha Ruben Zayas Montanez, Trujillo Alto, Puerto Rico.

Prior to that, he had beaten Jesus Haro on April 20, 2024, by unanimous decision in their 12 round contest at Coliseo Ruben Zayas, Trujillo Alto.

Going into that contest, he had been beaten by Yudai Shigeoka on April 16, 2023, by knockout in the 7th round in their WBC Interim World Minimumweight championship fight at Yoyogi #2 Gymnasium, Tokyo, Japan.

Before that, he had lost to Masataka Taniguchi on December 14, 2021, by technical knockout in the 11th round in their WBO World Minimumweight championship fight at Kokugikan, Tokyo.

He had won against Gabriel Mendoza on February 8, 2020, by technical knockout in the 9th round in their WBO World Minimumweight championship fight at Hotel El Panama, Panama City, Panama.

Activity check

Mendez's last 5 fights had come over a period of 6 years, 6 months and 25 days, meaning he had been fighting on average every 1 year, 3 months and 24 days. In those fights, he fought a total of 47 rounds, meaning that they had lasted 9.4 rounds on average.

What time did Ishii vs Mendez start?

The fighters were expected to ringwalk at around 11:00 AM UTC at Yokohama Buntai, Yokohama, Japan, which was 7:00 AM EST or 4:00 AM PST on the West Coast of America, or 12:00 PM BST in the UK.

What were the odds on Ishii vs Mendez?

Takeshi Ishii was a 2/9 (-450) favorite going into the contest, while Wilfredo Mendez made his way into the ring at 10/3 (+330) with oddsmakers.