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.
Brendan O'Callaghan (3-1 across 4 tracked bouts) and John Brewer (0-4 across 4 tracked bouts) 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.
Brendan O'Callaghan vs John Brewer — record, stats and common opponents compared
Head to Head
Brendan O'Callaghan leads 1–0- Brendan O'Callaghan wonPSAC - Apr 11, 2026 - 2300 Arena-PhiladelphiaApr 11, 2026 · TKO
The Numbers
- 3-1 (edge)
- Record
- 0-4
- 75% (edge)
- Win %
- 0%
- 1 (edge)
- Wins by knockout
- 0
- 33%
- Stoppage rate (tracked wins)
- —
- 0 (edge)
- Times stopped
- 2
- 0
- Title reigns
- 0
- 3.5
- Bouts per year
- 3.9 (edge)
- 4
- Bouts tracked
- 4
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
- 162.00
- Division
- 166.60
How They Win
Tracked bouts onlyBrendan O'Callaghan · 3 wins
KO/TKO
1
Decision
1
Other
1
John Brewer · 0 wins
No tracked wins yet.
Counted from the bouts Kill The Body has ingested for each fighter (4 and 4 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
Brendan O'Callaghan
WWWL
W3 streak · last fought Apr 11, 2026
John Brewer
LLLL
L4 streak · last fought Jul 25, 2026
Common Questions
- Have Brendan O'Callaghan and John Brewer ever fought each other?
- Yes. Brendan O'Callaghan and John Brewer met once on April 11, 2026, and Brendan O'Callaghan won by TKO.
- Who has the better record, Brendan O'Callaghan or John Brewer?
- Brendan O'Callaghan is 3-1 across the 4 bouts Kill The Body has tracked and John Brewer is 0-4 across the 4 bouts Kill The Body has tracked. Brendan O'Callaghan has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
- Who has more knockouts, Brendan O'Callaghan or John Brewer?
- Brendan O'Callaghan has 1 knockout win and John Brewer has 0. Brendan O'Callaghan has more.
- Do Brendan O'Callaghan and John Brewer have any common opponents?
- Kill The Body's bout data shows no opponents that both Brendan O'Callaghan and John Brewer have faced.
- How much fight data does Kill The Body have on Brendan O'Callaghan and John Brewer?
- This comparison is drawn from 4 bouts tracked for Brendan O'Callaghan and 4 bouts tracked for John Brewer. Method and activity splits reflect those bouts only.