Middleweight · Ireland

Gary O'Sullivan

32-6-0 21 KO · 2008–2025

Gary O'Sullivan is a middleweight boxer from Ireland, born Jul 14, 1984. Record 32-6-0 with 21 knockouts over 2008–2025. Gary O'Sullivan last fought Mateusz Pawlowski on Oct 10, 2025 and won by PTS over 6 rounds.

Also: غاري أوسوليفان · Spike O'Sullivan
BornJul 14, 1984
Country🇮🇪 Ireland
StanceOrthodox
Reach179 cm
NicknameThe Celtic Warrior
DebutJan 26, 2008
Career2008–2025
Rounds boxed180
KO share66%
Born inMahon, Cork, Ireland
TitlesWBO Inter-Continental middleweight title 2017
Boxerbook rating1748 ± 153 · inactive since Oct 2025Why here ›
Confirmed bouts9 of 38 · 4 official

Record and next fight

Record
32-6-0, 21 KOs · 2008–2025
Next fight
No next fight confirmed

Last result

W
Mateusz Pawlowski
PTS 6/6 · The National Stadium, Dublin, 🇮🇪
2025-10-10 ›
✓ one source

The record

38 bouts, 2008–2025, newest first. Records under each bout are both boxers going in.

Bouts by source: English Wikipedia · 38, Wikipedia (ja) · 5, WBA Fights Master Scores · 3, Nevada State Athletic Commission — Results · 1, California State Athletic Commission — Results (archive) · 1

W
Mateusz Pawlowski
PTS 6/6 · The National Stadium, Dublin, 🇮🇪
O'Sullivan 31-6-0 · Pawlowski —
2025-10-10 ›
✓ one source
L
Sofiane Khati
PTS 8/8 · TF Royal Theatre, Castlebar, 🇮🇪
O'Sullivan 31-5-0 · Khati —
2024-03-17 ›
✓ one source
L
Erislandy Lara 🇨🇺
For WBA middleweight title
TKO 7/12 · Barclays Center, New York City, 🇺🇸
O'Sullivan 31-4-0 · Lara 28-3-3
2022-05-28 ›
official ★
W
Nodar Robakidze
UD 6/6 · Country Hall Liège, 🇧🇪
O'Sullivan 30-4-0 · Robakidze —
2021-05-29 ›
✓ one source
L
Jaime Munguia 🇲🇽
TKO 11/12 · Alamodome, San Antonio, Texas, 🇺🇸
O'Sullivan 30-3-0 · Munguia 34-0-0
2020-01-11 ›
✓✓ two sources
W
Khiary Gray
TKO 6/10 · House of Blues, Boston, 🇺🇸
O'Sullivan 29-3-0 · Gray —
2019-03-16 ›
✓ one source
W
Gabor Gorbics
PTS 8/8 · Royal Theatre, Castlebar, 🇮🇪
O'Sullivan 28-3-0 · Gorbics —
2018-12-07 ›
✓ one source
L
David Lemieux 🇨🇦
WBA World Title Eliminator
KO 1/12 · T Mobile Arena, Las Vegas, 🇺🇸
O'Sullivan 28-2-0 · Lemieux 39-4-0
2018-09-15 ›
official ★
W
Berlin Abreu
KO 3/10 · Stub Hub Center, Carson, 🇺🇸
O'Sullivan 27-2-0 · Abreu —
2018-05-04 ›
official ★
W
Antoine Douglas 🇺🇸
Won vacant WBO Inter-Continental middleweight title
TKO 7/10 · Place Bell, Quebec, 🇨🇦
O'Sullivan 26-2-0 · Douglas 5-1-1
2017-12-16 ›
official ★
W
Nick Quigley
TKO 4/10 · House of Blues, Boston, 🇺🇸
O'Sullivan 25-2-0 · Quigley —
2017-09-30 ›
✓ one source
W
Chauncey Fields
KO 2/8 · Plainridge Park Casino, Plainville, 🇺🇸
O'Sullivan 24-2-0 · Fields —
2017-05-13 ›
✓ one source
W
Ronald Montes
RTD 3/8 · House of Blues, Boston, 🇺🇸
O'Sullivan 23-2-0 · Montes —
2017-03-18 ›
✓ one source
W
Jaime Barboza
UD 8/8 · Bank of New Hampshire Pavilion, Gilford, 🇺🇸
O'Sullivan 22-2-0 · Barboza —
2016-09-17 ›
✓ one source
L
Chris Eubank Jr 🇬🇧
RTD 7/12 · The O2 Arena, Greenwich, 🇬🇧
O'Sullivan 22-1-0 · Eubank Jr 20-1-0
2015-12-12 ›
✓✓ two sources
W
David Toribio
KO 2/10 · Lowell Memorial Auditorium, Lowell, 🇺🇸
O'Sullivan 21-1-0 · Toribio —
2015-10-10 ›
✓ one source
W
Melvin Betancourt
KO 2/10 · Agganis Arena, Boston, 🇺🇸
O'Sullivan 20-1-0 · Betancourt —
2015-05-23 ›
✓ one source
W
Milton Núñez 🇨🇴
TKO 3/8 · Madison Square Garden, New York City, 🇺🇸
O'Sullivan 19-1-0 · Núñez 28-13-1
2015-03-14 ›
✓✓ two sources
W
Larry Smith
TKO 2/6 · Memorial Hall, Melrose, 🇺🇸
O'Sullivan 18-1-0 · Smith —
2015-02-26 ›
✓ one source
W
Anthony Fitzgerald
TKO 1/10 · 3Arena, Dublin, 🇮🇪
O'Sullivan 17-1-0 · Fitzgerald —
2014-11-15 ›
✓ one source
Show all 38 bouts
W
Jose Medina
MD 6/6 · House of Blues, Boston, 🇺🇸
O'Sullivan 16-1-0 · Medina —
2014-06-05 ›
✓ one source
L
Billy Joe Saunders 🇬🇧
For WBO International middleweight title
UD 12/12 · Wembley Arena, London, 🇬🇧
O'Sullivan 16-0-0 · Saunders 17-0-0
2013-07-20 ›
✓✓ two sources
W
Tadas Jonkus
Retained WBO International middleweight title
TKO 3/8 · Carlton Hotel Tyrrelstown, Dublin
O'Sullivan 15-0-0 · Jonkus —
2013-05-03 ›
✓ one source
W
Matthew Hall 🇬🇧
Won vacant WBO International middleweight title
UD 12/12 · Upton Park, West Ham, 🇬🇧
O'Sullivan 14-0-0 · Hall 24-5-0
2012-07-14 ›
✓✓ two sources
W
Paul Morby
PTS 6/6 · Braehead Arena, Glasgow, 🇬🇧
O'Sullivan 13-0-0 · Morby —
2012-03-10 ›
✓ one source
W
Robert Long
Retained Irish middleweight title
TKO 1/10 · National Stadium, Dublin, 🇮🇪
O'Sullivan 12-0-0 · Long —
2011-06-25 ›
✓ one source
W
Ryan Clark
KO 1/4 · O2 Arena, Greenwich, 🇬🇧
O'Sullivan 11-0-0 · Clark —
2011-05-21 ›
✓ one source
W
Sylvain Touzet
TKO 3/6 · Neptune Sports Arena, Cork, 🇮🇪
O'Sullivan 10-0-0 · Touzet —
2010-06-26 ›
✓ one source
W
Ciaran Healy
Won vacant Irish middleweight title
PTS 10/10 · Neptune Sports Arena, Cork, 🇮🇪
O'Sullivan 9-0-0 · Healy —
2009-12-14 ›
✓ one source
W
Arturs Jaskuls
PTS 6/6 · National Basketball Arena, Dublin
O'Sullivan 8-0-0 · Jaskuls —
2009-07-25 ›
✓ one source
W
Marcin Piatkowski
KO 1/6 · Silver Springs Moran Hotel, Cork, 🇮🇪
O'Sullivan 7-0-0 · Piatkowski —
2009-04-25 ›
✓ one source
W
Jimmy LeBlanc
DQ 4/8 · Dorchester Armory, Dorchester, 🇺🇸
O'Sullivan 6-0-0 · LeBlanc —
2009-03-14 ›
✓ one source
W
Idiozan Matos
TKO 3/6 · Gleneagle Hotel, Killarney, 🇮🇪
O'Sullivan 5-0-0 · Matos —
2008-10-26 ›
✓ one source
W
Sergejs Volodins 🇱🇻
RTD 1/6 · Neptune Sports Arena, Cork, 🇮🇪
O'Sullivan 4-0-0 · Volodins —
2008-09-13 ›
✓ one source
W
Eugen Stan
PTS 6/6 · National Basketball Arena, Dublin, 🇮🇪
O'Sullivan 3-0-0 · Stan —
2008-07-05 ›
✓ one source
W
Tye Williams
TKO 1/4 · National Stadium, Dublin, 🇮🇪
O'Sullivan 2-0-0 · Williams —
2008-04-15 ›
✓ one source
W
Robert Harris
TKO 1/4 · Orpheum Theater, Boston, 🇺🇸
O'Sullivan 1-0-0 · Harris —
2008-03-15 ›
✓ one source
W
Peter Dunn
TKO 6/6 · Neptune Sports Arena, Cork, 🇮🇪
O'Sullivan 0-0-0 · Dunn —
2008-01-26 ›
✓ one source

Ratings now

Not in any current ranking.

World titles

No world title reigns recorded.

Facts

What is Gary O'Sullivan's record?
Gary O'Sullivan's professional record is 32-6-0 with 21 knockouts.
When is Gary O'Sullivan's next fight?
No next fight is confirmed as of 17 Oct 2026.
Who did Gary O'Sullivan fight last?
Gary O'Sullivan last fought Mateusz Pawlowski on Oct 10, 2025 and won by PTS over 6 rounds.

Sources

Boxerbook ID 8443 · permanent link boxerbook.com/id/8443. Wikidata (CC0), English Wikipedia (CC BY-SA). Last fetched: 2026-10-11. Spot a mistake? Every bout page has a link to report it.

Wikipedia ↗Wikidata ↗