Pierce O'Leary (boxer)
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| Personal information | |
|---|---|
Nickname | Big Bang[1] |
| Nationality | Irish |
| Born | (2000-02-28) 28 February 2000 (age 26)[1] |
| Height | 5 ft 8 in (173 cm)[1] |
| Weight | Super-lightweight |
| Boxing career | |
| Stance | Orthodox |
| Boxing record[2] | |
| Total fights | 19 |
| Wins | 19 |
| Win by KO | 11 |
Pierce O'Leary (born 28 February 2000) is an Irish professional boxer who has held the IBO super-lightweight title since March 2026. He is also a former European and WBC International champion in the same weight division.
A nine-time Irish amateur champion, O'Leary turned professional in 2019, signing a promotional contract with MTK Global.[3] He made his pro-debut on 11 October that year, defeating Oscar Amador on points over four rounds at Ulster Hall in Belfast.[4]
Unbeaten in his first 10 professional fights and now signed to Frank Warren's Queensbury Promotions, O'Leary claimed the vacant WBC International super-lightweight title thanks to a unanimous decision win over Emmanuel Mungandjela at the O2 Arena in London on 26 November 2022.[5][6]
He made the first defense of his championship at the SSE Arena in Belfast on 27 May 2023, stopping Alin Florin Ciorceri in the first round.[7]
On 23 September 2023, he retained his title with a unanimous decision victory over Kane Gardner at Wembley Arena in London.[8][9]
Two more successful defenses followed as O'Leary stopped Hovhannes Martirosyan in the ninth round at Resorts World Arena in Birmingham on 16 March 2024,[10][11] and then prevailed via unanimous decision against Darragh Foley back at the SSE Arena in Belfast on 28 June 2024.[12][13]
In his next outing, he stopped Jose Edgardo Perdomo in the third of their scheduled eight-round non-title contest at Wembley Arena in London on 7 December 2024.[14][15]
O'Leary defended his championship for the fifth time against Liam Dillon at Portman Road in Ipswich on 7 June 2025, with the vacant European super-lightweight title also on the line.[16][17] He won via unanimous decision.[18][19]
He was scheduled to face Mark Chamberlain for the vacant IBO super-lightweight title at 3Arena in Dublin on 14 March 2026.[20] However, Chamberlain withdrew two weeks before the fight was due to take place due to illness and was replaced by Maxi Hughes.[21] O'Leary won when Hughes retired on his stool at the end of the fifth round.[22][23] O'Leary and Chamberlain are now due to fight at 3Arena in Dublin on 1 August 2026.[24][25]
Professional boxing record
| 19 fights | 19 wins | 0 losses |
|---|---|---|
| By knockout | 11 | 0 |
| By decision | 8 | 0 |
| No. | Result | Record | Opponent | Type | Round, time | Date | Location | Notes |
|---|---|---|---|---|---|---|---|---|
| 19 | Win | 19–0 | Maxi Hughes | RTD | 5 (12), 3:00 | 14 Mar 2026 | 3Arena, Dublin, Ireland | Won vacant IBO light-welterweight title |
| 18 | Win | 18–0 | Braian Esequiel Ronner | KO | 8 (8), 0:53 | 6 Dec 2025 | Rushcliffe Arena, Nottingham, Nottinghamshire, England | |
| 17 | Win | 17–0 | Liam Dillon | UD | 12 | 7 Jun 2025 | Portman Road, Ipswich, Suffolk, England | Won vacant European super-lightweight title |
| 16 | Win | 16–0 | Jose Edgardo Perdomo | TKO | 3 (8), 1:06 | 7 Dec 2024 | Wembley Arena, London, England | |
| 15 | Win | 15–0 | Darragh Foley | UD | 10 | 28 Jun 2024 | SSE Arena, Belfast, Northern Ireland | Retained WBC International super-lightweight title |
| 14 | Win | 14–0 | Hovhannes Martirosyan | KO | 9 (10), 2:39 | 16 Mar 2024 | bp pulse LIVE, Birmingham, West Midlands, England | Retained WBC International super-lightweight title |
| 13 | Win | 13–0 | Kane Gardner | UD | 10 | 23 Sep 2023 | Wembley Arena, London, England | Retained WBC International super-lightweight title |
| 12 | Win | 12–0 | Alin Florin Ciorceri | TKO | 1 (10), 2:39 | 27 May 2023 | SSE Arena, Belfast, Northern Ireland | Retained WBC International super-lightweight title |
| 11 | Win | 11–0 | Emmanuel Mungandjela | UD | 10 | 26 Nov 2022 | The O2 Arena, London, England | Won vacant WBC International super-lightweight title |
| 10 | Win | 10–0 | Robin Zamora | TKO | 2 (8), 1:01 | 16 Jul 2022 | Copper Box Arena, London, England | |
| 9 | Win | 9–0 | Nathan Augustine | KO | 1 (8), 2:41 | 15 Apr 2022 | York Hall, Bethnal Green, London, England | |
| 8 | Win | 8–0 | Siar Ozgul | TKO | 7 (8), 1:14 | 29 Oct 2021 | York Hall, Bethnal Green, London, England | |
| 7 | Win | 7–0 | Jan Marsalek | TKO | 2 (4), 2:30 | 25 Jun 2021 | Bolton Whites Hotel (De Vere Whites), Bolton, Lancashire, England | |
| 6 | Win | 6–0 | Irvin Magno | PTS | 6 | 19 Feb 2021 | Bolton Whites Hotel (De Vere Whites), Bolton, Lancashire, England | |
| 5 | Win | 5–0 | Jacob Quinn | TKO | 4 (6), 0:21 | 12 Aug 2020 | Production Park Studios, South Kirkby, Yorkshire, England | |
| 4 | Win | 4–0 | Liam Richards | PTS | 4 | 1 Feb 2020 | Ulster Hall, Belfast, Northern Ireland | |
| 3 | Win | 3–0 | Alec Bazza | TKO | 2 (4), 1:56 | 20 Dec 2019 | Bolton Whites Hotel (De Vere Whites), Bolton, Lancashire, England | |
| 2 | Win | 2–0 | Chris Adaway | PTS | 4 | 16 Nov 2019 | Emirates Arena, Glasgow, Scotland | |
| 1 | Win | 1–0 | Oscar Amador | PTS | 4 | 11 Oct 2019 | Ulster Hall, Belfast, Northern Ireland |
References
- 1 2 3 "Pierce O'Leary". tapology.com. Retrieved 21 May 2025.
- ↑ "Boxing record for Pierce O'Leary". BoxRec.
- ↑ "MTK Global Sign All-Conquering Amateur O'Leary". Fight Post. Retrieved 21 May 2025.
- ↑ "'Everyone knows who I am now' – Dublin prospect Pierce O'Leary reacts to 'special' debut". Irish Boxing. Retrieved 21 May 2025.
- ↑ "Boxing: Dublin 22-year-old on path to gold". Dublin Gazette. Retrieved 21 May 2025.
- ↑ "Pierce O'Leary Dominates Mungandjela Over Ten Rounds; Tommy Fletcher Delivers Highlight Reel KO". Boxing Scene. Retrieved 21 May 2025.
- ↑ "Pierce O'Leary records impressive first round victory on Michael Conlan v Luis Alberto Lopez undercard". Irish Mirror. Retrieved 21 May 2025.
- ↑ "Irish Pride Prevails in Wembley: Pierce O'Leary Defends WBC International Super Lightweight Belt". wbcboxing.com. Retrieved 21 May 2025.
- ↑ "Pierce O'Leary Fights Kane Gardner To Unanimous Decision Win". Boxing Scene. Retrieved 21 May 2025.
- ↑ "BIG BANG – Pierce O'Leary scores another big KO". Irish Boxing. Retrieved 21 May 2025.
- ↑ "Magnificent Seven Results: Pierce O'Leary vs Hovhannes Martirosyan". ringside24.com. Retrieved 21 May 2025.
- ↑ "Pierce O'Leary retains WBC International belt, Conner Kelsall claims vacant Commonwealth flyweight title". TNT Sports. Retrieved 21 May 2025.
- ↑ "Pierce O'Leary Outscores Determined Darragh Foley". Boxing Scene. Retrieved 21 May 2025.
- ↑ "Pierce O'Leary lands knockout with perfectly timed left hook to set up big fights in 2025". Irish Mirror. Retrieved 21 May 2025.
- ↑ "'Shark' Pierce O'Leary nearing world's best at 140lbs". Boxing Scene. Retrieved 21 May 2025.
- ↑ "Pierce O'Leary set to face Liam Dillon for vacant European title". Boxing News Online. Retrieved 21 May 2025.
- ↑ "Pierce O'Leary, Liam Dillon To Contest Vacant European Junior Welterweight Title On June 7". The Ring. Retrieved 21 May 2025.
- ↑ "Pierce O'Leary outpoints Liam Dillon for European title". Boxing News Online. Retrieved 7 June 2025.
- ↑ "Pierce O'Leary Outlasts Resilient Liam Dillon To Claim Vacant European Junior Welterweight Title". The Ring. Retrieved 7 June 2025.
- ↑ "Pierce O'Leary is Coming Home – Dublin Date for Big Bang". Irish Boxing. Retrieved 26 January 2026.
- ↑ "Pierce O'Leary set for Maxi Hughes test after Mark Chamberlain illness". DAZN. Retrieved 2 March 2026.
- ↑ "Pierce O'Leary Stops Maxi Hughes After Five Rounds To Win IBO Title In Dublin". Boxing News 24/7. Retrieved 14 March 2026.
- ↑ "Pierce O'Leary stops courageous veteran Maxi Hughes in Dublin". Boxing Scene. Retrieved 14 March 2026.
- ↑ "Pierce O'Leary set to headline Dublin card against Mark Chamberlain". RTE.
- ↑ "Pierce O'Leary vs. Mark Chamberlain rescheduled for August 1 in Dublin". boxingscene.com.