Heads up: at least one of these records is a tracked record — the wins and losses Kill The Body has ingested so far, not an independently verified career total. Treat the comparison as a read on the bouts we hold, not a settled ledger.
Chris O'Brien (1-1 across 2 tracked bouts) and Mark Heffron (30-4-1) are compared on record, finishing method, activity, and common opponents on Kill The Body. The two have met once. They share no common opponents in Kill The Body's bout data.
Chris O'Brien vs Mark Heffron — record, stats and common opponents compared
Head to Head
Mark Heffron leads 1–0- Mark Heffron wonHeffron vs O'BrienNov 13, 2010 · TKO · R1
The Numbers
- 1-1
- Record
- 30-4-1 (edge)
- 50%
- Win %
- 87.1% (edge)
- 0
- Wins by knockout
- 24 (edge)
- —
- KO rate
- 80%
- 0%
- Stoppage rate (tracked wins)
- 80% (edge)
- 1 (edge)
- Times stopped
- 4
- 0
- Title reigns
- 0
- 0.8
- Bouts per year
- 2.6 (edge)
- 2
- Bouts tracked
- 35
One or both records are tracked, not career-verified.
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
- —
- Height
- 5′11″ (180 cm)
- —
- Reach
- 72″ (183 cm)
- —
- Age
- 34
- —
- Stance
- Orthodox
How They Win
Tracked bouts onlyChris O'Brien · 1 wins
KO/TKO
0
Decision
1
Other
0
Mark Heffron · 30 wins
KO/TKO
24
Decision
6
Other
0
Counted from the bouts Kill The Body has ingested for each fighter (2 and 35 respectively), not from a career-complete method table.
Common Opponents
No opponents in common across the bouts Kill The Body has tracked for these two.
Current Form
Chris O'Brien
LW
L1 streak · last fought Nov 13, 2010
Mark Heffron
LWLWW
L1 streak · last fought May 25, 2024
Common Questions
- Have Chris O'Brien and Mark Heffron ever fought each other?
- Yes. Chris O'Brien and Mark Heffron met once on November 13, 2010, and Mark Heffron won by TKO in round 1.
- Who has the better record, Chris O'Brien or Mark Heffron?
- Chris O'Brien is 1-1 across the 2 bouts Kill The Body has tracked and Mark Heffron is 30-4-1. Mark Heffron has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
- Who has more knockouts, Chris O'Brien or Mark Heffron?
- Chris O'Brien has 0 knockout wins and Mark Heffron has 24. Mark Heffron has more.
- Do Chris O'Brien and Mark Heffron have any common opponents?
- Kill The Body's bout data shows no opponents that both Chris O'Brien and Mark Heffron have faced.
- How much fight data does Kill The Body have on Chris O'Brien and Mark Heffron?
- This comparison is drawn from 2 bouts tracked for Chris O'Brien and 35 bouts tracked for Mark Heffron. Method and activity splits reflect those bouts only.