Skip to main content
Kill The Body

and the head will die

Braian Esequiel Ronner vs Pierce O'Leary — record, stats and common opponents compared

Braian Esequiel Ronner

🇮🇪IRELAND

Pierce O'Leary

Braian Esequiel Ronner (0-1 across 1 tracked bout) and Pierce O'Leary (19-1) 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.

Ronner

Tracked record

0–1

counted from 1 bout Kill The Body has ingested

O'Leary

19

Wins11 KO · 58%

1

Loss

0

Draws20 tracked bouts

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.

Head to Head

O'Leary leads 1–0

Braian Esequiel Ronner and Pierce O'Leary have met 1 time; O'Leary leads 1–0.

Braian Esequiel Ronner and Pierce O'Leary have met 1 time; O'Leary leads 1–0.
Met2025Dec 6Series
Braian Esequiel RonnerFighter ALLost0–1W–L
Pierce O'LearyFighter BWWon1–0W–L
ResultKO1Meeting

The Numbers

Ronner 0 · O'Leary 4 of 4 measurable rows
RonnerO'Leary
Record†
0-119-1 (edge)
Win %0–100%
0%
95% (edge)
Wins by knockoutmax 11
0
11 (edge)
KO ratenot comparable
—57.89%
Stoppage rate (tracked wins)‡not comparable
—58%
Times stopped‡levelmax 1
1
1
Title reignsmax 2
0
2 (edge)
Bouts per year§not comparable
—2.9
Bouts trackedcoveragemax 20
1
20

† One or both records are tracked, not career-verified. · ‡ Counted from bouts Kill The Body has ingested, not a career total. · § Across each fighter's tracked career span. · Bars are scaled per row — percentages on 0–100, counts against the larger of the two. Every figure is also printed as text.

Tale of the Tape

Heightnot held
Braian Esequiel Ronner: No height on file
Pierce O'Leary: 5′8″
Agenot held
Braian Esequiel Ronner: No date of birth
Pierce O'Leary: 26
Stance
Braian Esequiel Ronner: Not recorded
Pierce O'Leary: Orthodox

Braian Esequiel Ronner left, Pierce O'Leary right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

How They Win

Tracked bouts only
Braian Esequiel Ronner0 wins · from 1 tracked bout

Braian Esequiel Ronner: no tracked wins in the 1 bout Kill The Body has ingested.

No tracked wins for Ronner yet.

Pierce O'Leary19 wins · from 20 tracked bouts

Pierce O'Leary: 19 tracked wins — 11 by KO/TKO (58%) and 8 on the cards (42%). Counted from 20 bouts Kill The Body has ingested.

11 by KO/TKO 58%8 on the cards 42%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Braian Esequiel Ronner 1, Pierce O'Leary 20 — 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

Oldest left · newest right

Braian Esequiel Ronner has lost the most recent, to Pierce O'Leary. Ronner last boxed on Dec 6, 2025 — 323 days ago.L

O'Leary Dec 2025

Pierce O'Leary had won four in a row before losing by stoppage to Mark Chamberlain. O'Leary last boxed on Aug 1, 2026 — 85 days ago.WWWWL

Perdomo Dec 2024Dillon Jun 2025Ronner Dec 2025Hughes Mar 2026Chamberlain Aug 20262.9 tracked bouts per year

Common Questions

With the rows behind them
Have Braian Esequiel Ronner and Pierce O'Leary ever fought each other?
Yes. Braian Esequiel Ronner and Pierce O'Leary met once on December 6, 2025, and Pierce O'Leary won by KO.
The meeting

LDec 6, 2025 · O'Leary · KO

Head to Head ↓
Who has the better record, Ronner or O'Leary?
Braian Esequiel Ronner is 0-1 across the 1 bout Kill The Body has tracked and Pierce O'Leary is 19-1. Pierce O'Leary has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
Records · win %

Ronner0–10%

O'Leary19–195%

The Numbers ↓
Who has more knockouts, Ronner or O'Leary?
Braian Esequiel Ronner has 0 knockout wins and Pierce O'Leary has 11. Pierce O'Leary has more.
Knockout wins · KO rate

Ronner0

O'Leary1157.9%

The Numbers ↓
Do Ronner and O'Leary have any common opponents?
Kill The Body's bout data shows no opponents that both Braian Esequiel Ronner and Pierce O'Leary have faced.
How much fight data does Kill The Body have on Ronner and O'Leary?
This comparison is drawn from 1 bout tracked for Braian Esequiel Ronner and 20 bouts tracked for Pierce O'Leary. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Ronner1bout

O'Leary20bouts

How They Win ↓

Compare someone else

3 suggested matchups

Compare O'Leary with…

Someone else?

Release either fighter to put someone new in that slot — the other one stays put.