Simsri vs Vicelles

When is Simsri vs Vicelles?

Thanongsak Simsri will face Mark Vicelles on Saturday, September 26th, 2026, at FujisanMesse, Fuji.

The fight will be contested over 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 making his 2nd defense of the IBF World Junior Flyweight Championship. He won this belt against Christian Araneta in June 2025. He had held this belt for 1 year and 24 days.

Simsri vs Vicelles stats

Thanongsak Simsri steps into the ring with a record of 40 wins, 1 loss, and 0 draws, 35 of those wins coming by way of knockout.

Mark Vicelles will make his way to the ring with a record of 21 wins, 2 losses and 1 draw, with 11 of those wins by knockout.

The stats suggest Simsri has a massive power advantage over Vicelles, boasting a 88% knockout percentage compared to Vicelles' 52%.

Thanongsak Simsri is the younger man by 4 years, at 26 years old.

Vicelles has a height advantage of 2 inches over Simsri.

Thanongsak Simsri fights out of the orthodox stance, while Mark Vicelles is a southpaw.

Simsri is arguably the more experienced fighter, having had 17 more fights, and made his debut in 2018, 2 years and 5 months later than Vicelles, whose first professional fight was in 2016. He has fought 10 more professional rounds, totaling 145 compared to Vicelles' 135.

Thanongsak Simsri goes into the fight ranked number 2 by The Ring at jr flyweight.

Mark Vicelles is currently ranked number 15 by the WBC, and 13 by the IBF in the 108lb division.

Activity check

Simsri's last 3 fights have come over a period of 1 year, 9 months and 11 days, which means he has been fighting approximately every 7 months and 4 days. In those fights, he fought a total of 26 rounds, meaning that they have lasted 8.7 rounds on average.

What time does Simsri vs Vicelles start?

The fighters are expected to ringwalk at around 12:00 PM UTC at FujisanMesse, Fuji, Japan, which is 8:00 AM EST or 5:00 AM PST on the West Coast of America, or 1:00 PM BST in the UK.

What are the odds on Simsri vs Vicelles?

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