Simsri vs Mendoza

When is Simsri vs Mendoza?

Thanongsak Simsri is set to take on Sergio Mendoza on Monday, April 13th, 2026, at Korakuen Hall, Tokyo.

The fight is scheduled for 12 rounds in the Jr Flyweight division, which means the weight limit will be 108 pounds (7.7 stone or 49 kg).

This contest is for the IBF jr flyweight championship of the world.

Simsri will be defending his IBF World Junior Flyweight Championship for the first time. He won this belt against Christian Araneta in June 2025. He had held this belt for 9 months and 13 days.

Simsri vs Mendoza stats

Thanongsak Simsri steps into the ring with a record of 39 wins, 1 loss, and 0 draws, 34 of those wins coming by way of knockout.

Sergio Mendoza will make his way to the ring with an unblemished record of 27 wins and 0 draws, with 23 of those by knockout.

The stats suggest Simsri has a slight advantage in power over Mendoza, with a 87% knockout percentage compared to Mendoza's 85%.

Thanongsak Simsri is the younger man by 1 year, at 25 years old.

Both Thanongsak Simsri and Sergio Mendoza fight out of an orthodox stance.

Simsri is the more experienced professional fighter, having had 13 more fights, and made his debut in 2018, 6 months earlier than Mendoza, whose first professional fight was in 2018. He has fought 30 more professional rounds, totaling 143 compared to Mendoza's 113.

Thanongsak Simsri goes into the fight ranked number 3 by The Ring at jr flyweight.

Sergio Mendoza is currently ranked number 1 by the IBF in the 108lb division.

Activity check

In terms of recent activity, Thanongsak Simsri has been fighting more than Sergio Mendoza.

Thanongsak Simsri last fought 9 months and 25 days ago, while Sergio Mendoza's last outing was 4 months and 22 days ago.

Simsri's last 2 fights have come over a period of 1 year, 3 months and 29 days, which means he has been fighting approximately every 7 months and 30 days. In those fights, he fought a total of 24 rounds, meaning that they have lasted 12 rounds on average.

Mendoza's last 2 fights have come over a period of 1 year and 7 months, meaning he has been fighting on average every 9 months and 15 days. In those fights, he fought a total of 6 rounds, meaning that they have lasted 3 rounds on average.

What time does Simsri vs Mendoza start?

The fighters are expected to ringwalk at around 11:00 AM UTC at Korakuen Hall, Tokyo, Japan, which is 7:00 AM EST or 4:00 AM PST on the West Coast of America, or 12:00 PM BST in the UK.

What are the odds on Simsri vs Mendoza?

Sergio Mendoza is currently 1/3 (-300) to win the contest outright, while you can get 9/4 (+230) on Thanongsak Simsri if you fancy the upset.

View all Simsri vs Mendoza Odds