Bookmakers made Callum Simpson a favorite against Troy Williamson when they square off in their contest on Saturday 8th August 2026 at First Direct Bank Arena, Leeds, United Kingdom.
He is currently 57/100 (-180) to win the contest outright, while you can get 5/4 (+130) on Troy Williamson if you fancy the small upset.
That means that oddsmakers think there is 59% chance of Simpson winning while giving Williamson a 41% chance.
Simpson opened as the favorite at 4/6 (-150) however, that price has now got wider by -9/10 (+110).
Williamson opened at 11/8 (+140) which has got wider by 87/-100 (+110).
The fight is scheduled for 12 rounds in the Super Middleweight division, which means both fighters will have to make the weight limit of 168 pounds (11.76 stones or 76.36 kg) on the day of the weigh-in.
Williamson vs Simpson II Head To Head
Troy Williamson steps into the ring with a record of 22 wins, 4 losses, and 1 draw, 16 of those wins coming by way of knockout.
Callum Simpson will make his way to the ring with a record of 18 wins, 1 loss and 0 draws, with 13 of those wins by knockout.
The stats suggest Williamson has a slight advantage in power over Simpson, with a 73% knockout percentage compared to Simpson's 72%.
Troy Williamson is the older man by 5 years, at 34 years old.
Simpson has a height advantage of 4 inches over Williamson. This also extends to a 2-inch reach advantage.
Both Troy Williamson and Callum Simpson fight out of an orthodox stance.
Williamson is the more experienced professional fighter, having had 8 more fights, and made his debut in 2016, 2 years and 7 months earlier than Simpson, whose first professional fight was in 2019. He has fought 92 more professional rounds, totaling 179 compared to Simpson's 87.
Troy Williamson goes into the fight ranked number 9 by the WBC, 8 by the WBO, and 3 by the IBF at super middleweight.
Callum Simpson is currently ranked number 9 by the IBF in the 168lb division.
Williamson vs Simpson II betting form
Troy Williamson has stopped 2 of his last 5 opponents.
In his last fight, he defeated Callum Simpson on December 20, 2025, by technical knockout in the 10th round in their BBBOC British Super Middleweight championship fight at First Direct Arena, Leeds, United Kingdom. He was a 9/2 (+450) underdog going into the ring.
Prior to that, he had defeated Mark Dickinson on September 6, 2025, by technical knockout in the 9th round at Rainton Meadows Arena, Houghton-le-Spring.
Going into that contest, he had been beaten by Ishmael Davis on March 23, 2024, by unanimous decision in their 12 round contest at Sheffield Arena, Sheffield. He was a 2/1 (+200) underdog going into the ring.
Before that, he had lost to Caoimhin Agyarko on December 2, 2023, by split decision in their 10 round contest at The SSE Arena (Odyssey Arena), Belfast. He was a 5/4 (+130) underdog going into the ring.
He had been beaten by Josh Kelly on December 2, 2022, by unanimous decision in their BBBOC British Super Welterweight championship fight at Utilita Arena, Newcastle. He was a 91/100 (-110) favorite going into the ring.
Simpson has beaten 4 of his last 5 opponents, stopping 3 of them, going the distance once.
In his last fight, he lost to Troy Williamson on December 20, 2025, by technical knockout in the 10th round in their BBBOC British Super Middleweight championship fight at First Direct Arena, Leeds, United Kingdom. He was a 7/50 (-710) favorite going into the contest.
Prior to that, he had beaten Ivan Zucco on June 7, 2025, by technical knockout in the 10th round at Oakwell Football Ground, Barnsley. He was a 3/25 (-830) favorite going into the contest.
Going into that contest, he had won against Elvis Ahorgah on February 1, 2025, by technical knockout in the 5th round in their CBC Commonwealth Super Middleweight championship fight at Wembley Arena, Wembley. He was a 1/50 (-10000) favorite going into the contest.
Before that, he had beaten Steed Woodall on January 11, 2025, by technical knockout in the 2nd round in their BBBOC British Super Middleweight and CBC Commonwealth Super Middleweight championship fight at Park Community Arena, Sheffield. He was a 4/25 (-590) favorite going into the contest.
He had defeated Zak Chelli on August 3, 2024, by unanimous decision in their BBBOC British Super Middleweight and CBC Commonwealth Super Middleweight championship fight at Oakwell Football Ground, Barnsley. He was a 3/10 (-340) favorite going into the contest.
Who's been more active?
If you think ring rust and activity is a big factor in this fight, Callum Simpson has been fighting more than Troy Williamson.
Troy Williamson last fought 6 months and 12 days ago, while Callum Simpson's last outing was 6 months and 12 days ago.
Williamson's last 5 fights have come over a period of 3 years, 8 months and 6 days, which means he has been fighting approximately every 8 months and 26 days. In those fights, he fought a total of 53 rounds, meaning that they have lasted 10.6 rounds on average.
Simpson's last 5 fights have come over a period of 2 years and 5 days, meaning he has been fighting on average every 4 months and 27 days. In those fights, he fought a total of 39 rounds, meaning that they have lasted 7.8 rounds on average.
What’s the Latest Time I Can Bet on Williamson vs Simpson Pre Fight?
The fighters are expected to ringwalk at around 10:00 PM BST at First Direct Bank Arena, Leeds, United Kingdom, which is 5:00 PM EST or 2:00 PM PST on the West Coast of America.
Where Can I Watch Williamson vs Simpson for In-Play Betting?
The DAZN show is expected to begin at 2:00 PM EST / 11:00 AM PST. The DAZN Global broadcast of the card is expected to start at 7:00 PM (BST).
