Riley vs Masternak

Who won Riley vs Masternak?

Viddal Riley beat Mateusz Masternak by unanimous decision in their 12 round contest on Saturday, April 4th, 2026, at O2 Arena, Greenwich.

The scorecards were announced as 118-110, 118-110, 119-109 in favor of winner Viddal Riley.

The fight was scheduled to take place over 12 rounds in the Cruiserweight division, which meant the weight limit was 200 pounds (14.3 stone or 90.7 kg).

This contest was an eliminator for the IBF cruiserweight championship of the world.

This fight appeared on the undercard of Deontay Wilder beating Derek Chisora. Also on the undercard Denzel Bentley beat Endry Saavedra for the WBO World Middleweight belt, and Ashton Sylve defeated Raul Antonio Galaviz Hernandez.

Riley vs Masternak stats

Viddal Riley stepped into the ring with an undefeated record of 13 wins, zero losses, and 0 draws, 7 of those wins coming by way of knockout.

Mateusz Masternak made his way to the ring with a record of 50 wins, 6 losses and 0 draws, with 33 of those wins by knockout.

The stats suggested Masternak had an advantage in power over Riley, with a 66% knockout percentage compared to Riley's 54%.

Viddal Riley was the younger man by 10 years, at 28 years old.

Riley had a height advantage of 1 inch over Masternak. Despite this, both fighters had equal reach.

Both Viddal Riley and Mateusz Masternak fought out of an orthodox stance.

Riley was the less experienced professional fighter, having had 43 fewer fights, and made his debut in 2018, 12 years and 5 months later than Masternak, whose first professional fight was in 2006. He had fought 319 fewer professional rounds, totaling 74 compared to Masternak's 393.

Viddal Riley went into the fight ranked number 11 by the WBA, 11 by the WBC, 15 by the WBO, and 7 by the IBF at cruiserweight.

Mateusz Masternak was ranked number 5 by the WBC, 7 by the WBO, and 4 by the IBF in the 200lb division.

Riley vs Masternak form

Riley remained undefeated as a professional, stopping 2 of his last 5 opponents.

In his last fight before this contest, he had beaten Cheavon Clarke on April 26, 2025, by unanimous decision in their BBBOC British Cruiserweight championship fight at Tottenham Hotspur Stadium, Tottenham, United Kingdom.

Prior to that, he had beaten Dan Garber on December 14, 2024, by technical knockout in the 2nd round at Exhibition Centre, Liverpool.

Going into that contest, he had won against Mikael Lawal on March 31, 2024, by unanimous decision in their 10 round contest at o2 Arena, London.

Before that, he had beaten Nathan Quarless on September 30, 2023, by unanimous decision in their 10 round contest at York Hall, Bethnal Green.

He had defeated Anees Taj on June 16, 2023, by technical knockout in the 4th round at York Hall, Bethnal Green.

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

In his last fight leading up to this contest, he had won against Joel Tambwe Djeko on October 4, 2025, by knockout in the 7th round at Nosalowy Dwór, Zakopane, Poland.

Prior to that, he had been beaten by 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.

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

Before that, he had lost to Yuniel Dorticos on October 20, 2018, by unanimous decision in their 12 round contest at CFE Arena, Florida, United States.

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.

Activity check

In terms of activity leading into the fight, Viddal Riley had been fighting more than Mateusz Masternak.

Going into this contest, Viddal Riley had last fought 11 months and 9 days ago, while Mateusz Masternak's last outing had been 6 months ago.

Riley's last 5 fights had come over a period of 2 years, 9 months and 19 days, which means he had been fighting approximately every 6 months and 23 days. In those fights, he fought a total of 38 rounds, meaning that they had lasted 7.6 rounds on average.

Masternak's last 5 fights had come over a period of 7 years, 11 months and 14 days, meaning he had been fighting on average every 1 year, 7 months and 4 days. In those fights, he fought a total of 45 rounds, meaning that they had lasted 9 rounds on average.

What time did Riley vs Masternak start?

The fighters were expected to ringwalk at around 9:20 PM BST at O2 Arena, Greenwich, United Kingdom, which was 4:20 PM EST or 1:20 PM PST on the West Coast of America.

Who broadcast Riley vs Masternak?

Riley vs Masternak was broadcast on DAZN PPV in both the United States and the UK.

What were the odds on Riley vs Masternak?

Viddal Riley was a 1/5 (-500) favorite going into the contest, while Mateusz Masternak made his way into the ring at 3/1 (+310) with oddsmakers.