Bookmakers made Viddal Riley a strong favorite against Mateusz Masternak when they come head-to-head in their clash on Saturday 4th April 2026 at O2 Arena, Greenwich, United Kingdom.
He is currently 2/5 (-250) to win the clash outright, while you can get 2/1 (+200) on Mateusz Masternak if you fancy the upset.
That means that oddsmakers think there is 69% chance of Riley winning while giving Masternak a 31% chance.
Riley opened as the favorite at 4/11 (-280) however, that price has shortened by 26/-25 (+100).
Masternak opened at 2/1 (+200).
The fight is scheduled for 12 rounds in the Cruiserweight division, which means both fighters will have to make the weight limit of 200 pounds (14 stones or 90.91 kg) on the day of the weigh-in.
Riley vs Masternak Head To Head
Viddal Riley steps 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 will make 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 suggest Masternak has an advantage in power over Riley, with a 66% knockout percentage compared to Riley's 54%.
Viddal Riley is the younger man by 10 years, at 28 years old.
Riley has a height advantage of 1 inch over Masternak. Despite this, both fighters have equal reach.
Both Viddal Riley and Mateusz Masternak fight out of an orthodox stance.
Riley is 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 has fought 319 fewer professional rounds, totaling 62 compared to Masternak's 381.
Viddal Riley goes into the fight ranked number 11 by the WBA, 11 by the WBC, 15 by the WBO, 6 by the IBF, and 9 by The Ring at cruiserweight.
Mateusz Masternak is currently ranked number 4 by the WBC, 7 by the WBO, and 10 by the IBF in the 200lb division.
Riley vs Masternak betting form
Riley remains undefeated as a professional, stopping 2 of his last 5 opponents.
In his last fight, he beat Cheavon Clarke on April 26, 2025, by unanimous decision in their BBBOC British Cruiserweight championship fight at Tottenham Hotspur Stadium, Tottenham, United Kingdom. He was a 4/7 (-180) favorite going into the contest.
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. He was a 2/7 (-380) favorite going into the contest.
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 was a 1/10 (-1000) favorite going into the contest.
He had defeated Anees Taj on June 16, 2023, by technical knockout in the 4th round at York Hall, Bethnal Green.
Masternak has beaten 3 of his last 5 opponents, stopping 2 of them, going the distance once.
In his last fight, he 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. He was a 5/2 (+250) underdog going into the fight.
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 was a 9/2 (+450) underdog going into the fight.
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 was a 67/100 (-150) favorite going into the fight.
Who's been more active?
If you think ring rust and activity is a big factor in this fight, Viddal Riley has been fighting more than Mateusz Masternak.
Viddal Riley last fought 11 months and 9 days ago, while Mateusz Masternak's last outing was 6 months ago.
Riley's last 5 fights have come over a period of 2 years, 9 months and 19 days, which means he has been fighting approximately every 6 months and 23 days. In those fights, he fought a total of 38 rounds, meaning that they have lasted 7.6 rounds on average.
Masternak's last 5 fights have come over a period of 7 years, 11 months and 14 days, meaning he has 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 have lasted 9 rounds on average.
What’s the Latest Time I Can Bet on Riley vs Masternak Pre Fight?
The fighters are expected to ringwalk at around 9:00 PM BST at O2 Arena, Greenwich, United Kingdom, which is 4:00 PM EST or 1:00 PM PST on the West Coast of America.
Where Can I Watch Riley vs Masternak for In-Play Betting?
Riley vs Masternak will be broadcast on DAZN PPV in both the United States and the UK.
