Opetaia vs Masternak

When is Opetaia vs Masternak?

Jai Opetaia could take on Mateusz Masternak in late 2025 Australia.

The fight would be contested over 12 rounds in the Cruiserweight division, which means the weight limit would be 200 pounds (14.3 stone or 90.7 kg).

Opetaia would be making his 6th defense of the The Ring Cruiserweight Championship. He won this belt against Mairis Briedis in July 2022. He has held this belt for 2 years, 11 months and 16 days.

He would be making his 4th defense of the IBF World Cruiserweight Championship. He won this belt against Mairis Briedis in May 2024. He has held this title for 1 year and 1 month.

Opetaia vs Masternak stats

Jai Opetaia would step into the ring with an undefeated record of 28 wins, zero losses, and 0 draws, 22 of those wins coming by way of knockout.

Mateusz Masternak would make his way to the ring with a record of 49 wins, 6 losses and 0 draws, with 32 of those wins by knockout.

The stats suggest Opetaia would have an advantage in power over Masternak, with a 79% knockout percentage compared to Masternak's 65%.

Jai Opetaia is the younger man by 9 years, at 29 years old.

Opetaia has a height advantage of 3 inches over Masternak. Despite this, both fighters have equal reach.

Jai Opetaia fights out of the southpaw stance, while Mateusz Masternak is an orthodox fighter.

Opetaia is currently the less experienced professional fighter, having had 27 fewer fights, and made his debut in 2015, 9 years and 1 month later than Masternak, whose first professional fight was in 2006. He has fought 245 fewer professional rounds, totaling 129 compared to Masternak's 374.

Mateusz Masternak is currently ranked number 7 by the WBC, 8 by the WBO, and 5 by the IBF in the 200lb division.

Opetaia vs Masternak form

Opetaia remains undefeated as a professional, stopping 4 of his last 5 opponents.

In his last fight, he beat Claudio Squeo on June 8, 2025, by technical knockout in the 5th round in their IBF World Cruiserweight and The Ring Cruiserweight championship fight at Gold Coast Convention Centre, Broadbeach, Australia.

Prior to that, he had beaten David Nyika on January 8, 2025, by knockout in the 4th round in their IBF World Cruiserweight and The Ring Cruiserweight championship fight at Gold Coast Convention Centre, Broadbeach.

Going into that contest, he had won against Jack Massey on October 12, 2024, by technical knockout in the 6th round in their IBF World Cruiserweight championship fight at Kingdom Arena, Riyadh, Saudi Arabia.

Before that, he had beaten Mairis Briedis on May 18, 2024, by unanimous decision in their IBF World Cruiserweight and The Ring Cruiserweight championship fight at Kingdom Arena, Riyadh.

He had defeated Ellis Zorro on December 23, 2023, by knockout in the 1st round in their The Ring Cruiserweight championship fight at Kingdom Arena, Riyadh.

Masternak has beaten 3 of his last 5 opponents, stopping 2 of them, going the distance once.

In his last fight, he lost to Chris Billam-Smith on December 10, 2023, by knockout in the 8th round in their WBO World Cruiserweight championship fight at Bournemouth International Centre, Bournemouth, United Kingdom.

Prior to that, he had won against Jason Whateley on October 29, 2022, by unanimous decision in their 12 round contest at Nosalowy Dwór, Zakopane, Poland.

Going into that contest, he had been beaten by Yuniel Dorticos on October 20, 2018, by unanimous decision in their 12 round contest at CFE Arena, Florida, United States.

Before that, he had defeated Youri Kayembre Kalenga on April 21, 2018, by technical knockout in the 6th round at Hala Sportowa, ul. Zuzlowa 4, Czestochowa, Poland.

He had beaten Stivens Bujaj on October 21, 2017, by technical knockout in the 7th round at Prudential Center, New Jersey, United States.

Activity check

In terms of recent activity, Jai Opetaia has been fighting more than Mateusz Masternak.

Jai Opetaia last fought 6 months and 23 days ago, while Mateusz Masternak's last outing was 2 years and 21 days ago.

Opetaia's last 5 fights have come over a period of 2 years and 8 days, which means he has been fighting approximately every 4 months and 27 days. In those fights, he fought a total of 28 rounds, meaning that they have lasted 5.6 rounds on average.

Masternak's last 5 fights have come over a period of 8 years, 2 months and 10 days, meaning he has been fighting on average every 1 year, 7 months and 21 days. In those fights, he fought a total of 45 rounds, meaning that they have lasted 9 rounds on average.

What are the odds on Opetaia vs Masternak?

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