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Kill The Body

and the head will die

Hovhannes Martirosyan vs Pierce O'Leary — record, stats and common opponents compared

Hovhannes Martirosyan

🇮🇪IRELAND

Pierce O'Leary

Hovhannes Martirosyan (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.

Martirosyan

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

Hovhannes Martirosyan and Pierce O'Leary have met 1 time; O'Leary leads 1–0.

Hovhannes Martirosyan and Pierce O'Leary have met 1 time; O'Leary leads 1–0.
Met2024Mar 16Series
Hovhannes MartirosyanFighter ALLost0–1W–L
Pierce O'LearyFighter BWWon1–0W–L
ResultKOR91Meeting

The Numbers

Martirosyan 0 · O'Leary 4 of 4 measurable rows
MartirosyanO'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
Hovhannes Martirosyan: No height on file
Pierce O'Leary: 5′8″
Agenot held
Hovhannes Martirosyan: No date of birth
Pierce O'Leary: 26
Stance
Hovhannes Martirosyan: Not recorded
Pierce O'Leary: Orthodox

Hovhannes Martirosyan 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
Hovhannes Martirosyan0 wins · from 1 tracked bout

Hovhannes Martirosyan: no tracked wins in the 1 bout Kill The Body has ingested.

No tracked wins for Martirosyan 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 — Hovhannes Martirosyan 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

Hovhannes Martirosyan last boxed on Mar 16, 2024 — 956 days ago. Martirosyan had lost the most recent, to Pierce O'Leary.L

O'Leary Mar 2024

Pierce O'Leary had won four in a row before losing by stoppage to Mark Chamberlain. O'Leary last boxed on Aug 1, 2026 — 88 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 Hovhannes Martirosyan and Pierce O'Leary ever fought each other?
Yes. Hovhannes Martirosyan and Pierce O'Leary met once on March 16, 2024, and Pierce O'Leary won by KO in round 9.
The meeting

LMar 16, 2024 · O'Leary · KO R9

Head to Head ↓
Who has the better record, Martirosyan or O'Leary?
Hovhannes Martirosyan 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 %

Martirosyan0–10%

O'Leary19–195%

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

Martirosyan0

O'Leary1157.9%

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

Martirosyan1bout

O'Leary20bouts

How They Win ↓

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