David Lemieux (43-5) and Gary O'Sullivan (31-6) are compared on record, finishing method, activity, and common opponents on Kill The Body. The two have met once. They share 1 common opponent.
David Lemieux vs Gary O'Sullivan — record, stats and common opponents compared
Head to Head
David Lemieux leads 1–0- David Lemieux wonLemieux vs O'SullivanSep 15, 2018 · KO · R1
The Numbers
- 43-5 (edge)
- Record
- 31-6
- 89.6% (edge)
- Win %
- 83.8%
- 36 (edge)
- Wins by knockout
- 21
- 83.72% (edge)
- KO rate
- 67.74%
- 84% (edge)
- Stoppage rate (tracked wins)
- 66%
- 3 (edge)
- Times stopped
- 4
- 1 (edge)
- Title reigns
- 0
- 3.2 (edge)
- Bouts per year
- 2.1
- 48
- Bouts tracked
- 38
Counted from bouts Kill The Body has ingested, not a career total.
Counted from bouts Kill The Body has ingested, not a career total.
Across each fighter's tracked career span.
Tale of the Tape
- 5′9″ (175 cm)
- Height
- 5′10″ (178 cm) (edge)
- 70″ (178 cm)
- Reach
- 70″ (179 cm) (edge)
- 37
- Age
- 42
- Orthodox
- Stance
- Orthodox
- Canada
- Nationality
- Irish
How They Win
Tracked bouts onlyDavid Lemieux · 43 wins
KO/TKO
36
Decision
7
Other
0
Gary O'Sullivan · 32 wins
KO/TKO
21
Decision
10
Other
1
Counted from the bouts Kill The Body has ingested for each fighter (48 and 38 respectively), not from a career-complete method table.
Common Opponents
1 sharedShared opponents are matched on fighter identity, not on name — two different fighters with the same name never merge into one row.
Current Form
David Lemieux
LWWWW
L1 streak · last fought May 21, 2022
Gary O'Sullivan
WLLWL
W1 streak · last fought Oct 10, 2025
Common Questions
- Have David Lemieux and Gary O'Sullivan ever fought each other?
- Yes. David Lemieux and Gary O'Sullivan met once on September 15, 2018, and David Lemieux won by KO in round 1.
- Who has the better record, David Lemieux or Gary O'Sullivan?
- David Lemieux is 43-5 and Gary O'Sullivan is 31-6. David Lemieux has the higher win percentage.
- Who has more knockouts, David Lemieux or Gary O'Sullivan?
- David Lemieux has 36 knockout wins and Gary O'Sullivan has 21. David Lemieux has more.
- Do David Lemieux and Gary O'Sullivan have any common opponents?
- David Lemieux and Gary O'Sullivan share 1 common opponent: Billy Joe Saunders. Neither fighter fared better across the shared opponents overall.
- Who is bigger, David Lemieux or Gary O'Sullivan?
- Gary O'Sullivan is the taller fighter at 178 cm, 3 cm above the other. Gary O'Sullivan also has the longer reach, by 1 cm.
- How much fight data does Kill The Body have on David Lemieux and Gary O'Sullivan?
- This comparison is drawn from 48 bouts tracked for David Lemieux and 38 bouts tracked for Gary O'Sullivan. Method and activity splits reflect those bouts only.