O'Leary vs Chamberlain

When is O’Leary vs Chamberlain?

Pierce O’Leary will face the challenge of Mark Chamberlain on Saturday, March 14th, 2026, at 3Arena, Dublin.

The fight will be contested over 12 rounds in the Super Lightweight division, which means the weight limit will be 140 pounds (10 stone or 63.5 kg).

This fight will appear on the undercard of Jazza Dickens' and Anthony Cacace's clash for the WBA World Super Featherweight championship.

O’Leary vs Chamberlain stats

Pierce O’Leary steps into the ring with an undefeated record of 17 wins, zero losses, and 0 draws, 9 of those wins coming by way of knockout.

Mark Chamberlain will make his way to the ring with a record of 17 wins, 1 loss and 1 draw, with 12 of those wins by knockout.

The stats suggest Chamberlain has an advantage in power over Leary, with a 71% knockout percentage compared to Leary's 53%.

Pierce O’Leary is the younger man by 1 year, at 25 years old.

Pierce O’Leary fights out of the orthodox stance, while Mark Chamberlain is a southpaw.

Leary is arguably the less experienced fighter, having had 2 fewer fights, and made his debut in 2019, 9 months later than Chamberlain, whose first professional fight was in 2018. He has fought the same amount of professional rounds, totaling 91 compared to Chamberlain's 91.

Pierce O’Leary goes into the fight ranked number 6 by the WBC, and 13 by the IBF at super lightweight.

Mark Chamberlain is currently ranked number 14 by the WBC in the 140lb division.

O’Leary vs Chamberlain form

Mark Chamberlain has stopped 3 of his last 5 opponents.

In his last fight, he drew Jack Rafferty on August 23, 2025, by majority draw in their 12 round contest in their BBBOC British Super Lightweight and CBC Commonwealth Super Lightweight championship fight at Planet Ice, Altrincham, United Kingdom.

Prior to that, he had been beaten by Josh Padley on September 21, 2024, by unanimous decision in their 10 round contest at Wembley Stadium, Wembley.

Going into that contest, he had beaten Joshua Oluwaseun Wahab on May 18, 2024, by technical knockout in the 1st round at Kingdom Arena, Riyadh, Saudi Arabia.

Before that, he had won against Gavin Gwynne on March 8, 2024, by technical knockout in the 4th round at Kingdom Arena, Riyadh.

He had beaten Artjoms Ramlavs on November 24, 2023, by technical knockout in the 10th round at York Hall, Bethnal Green, United Kingdom.

Activity check

Leary's last 4 fights have come over a period of 2 years, 5 months and 19 days, which means he has been fighting approximately every 7 months and 13 days. In those fights, he fought a total of 41 rounds, meaning that they have lasted 10.3 rounds on average.

Chamberlain's last 5 fights have come over a period of 2 years, 3 months and 18 days, meaning he has been fighting on average every 5 months and 17 days. In those fights, he fought a total of 37 rounds, meaning that they have lasted 7.4 rounds on average.

What time does O’Leary vs Chamberlain start?

The fighters are expected to ringwalk at around 9:00 PM UTC at 3Arena, Dublin, Ireland, which is 5:00 PM EST or 2:00 PM PST on the West Coast of America, or 9:00 PM GMT in the UK.

Who is showing O’Leary vs Chamberlain?

O’Leary vs Chamberlain will be broadcast on DAZN in both the United States and the UK.

How do you stream O’Leary vs Chamberlain?

You can stream O’Leary vs Chamberlain on the DAZN app and platform in the UK and most countries worldwide.
DAZN currently offers boxing fans two packages: Ultimate – includes all pay-per-view events at no extra cost (a minimum of 12 PPVs per year). Standard – includes access to 185+ fights annually, with PPV events available as optional add-ons. The DAZN app is available on Smart TVs, PCs, Apple and Android devices, Fire TV, Roku, and many other platforms.

1 month ultimate (12 month contract) of DAZN UK is £22.99, 1 year ultimate of DAZN UK is £229.99, 1 month (12 month contract) of DAZN UK is £14.99, 1 month (flexible pass) of DAZN UK is £24.99 and 1 year costs £119.99.

You can stream O’Leary vs Chamberlain on the DAZN app and platform in the USA.
DAZN currently offers boxing fans two packages: Ultimate – includes all pay-per-view events at no extra cost (a minimum of 12 PPVs per year). Standard – includes access to 185+ fights annually, with PPV events available as optional add-ons. The DAZN app is available on Smart TVs, PCs, Apple and Android devices, Fire TV, Roku, and many other platforms.

1 month ultimate (12 month contract) of DAZN is $44.99, 1 year ultimate of DAZN is $449.99, 1 month of DAZN is $29.99 and 1 year costs $224.99.

What are the odds on O’Leary vs Chamberlain?

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