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Kill The Body

and the head will die

Janos Olah vs Mark Heffron — record, stats and common opponents compared

Janos Olah

Mark Heffron

Janos Olah (0-4 across 4 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.

Olah

Tracked record

0–4

counted from 4 bouts Kill The Body has ingested

Heffron

30

Wins24 KO · 80%

4

Losses

1

Draw35 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

Heffron leads 1–0

Janos Olah and Mark Heffron have met 1 time; Heffron leads 1–0.

Janos Olah and Mark Heffron have met 1 time; Heffron leads 1–0.
Met2015Aug 1Series
Janos OlahFighter ALLost0–1W–L
Mark HeffronFighter BWWon1–0W–L
ResultKOR11Meeting

The Numbers

Olah 0 · Heffron 4 of 4 measurable rows
OlahHeffron
Record†
0-430-4-1 (edge)
Win %0–100%
0%
87.1% (edge)
Wins by knockoutmax 24
0
24 (edge)
KO ratenot comparable
—80%
Stoppage rate (tracked wins)‡not comparable
—80%
Times stopped‡levelmax 4
4
4
Title reignslevelmax 0
0
0
Bouts per year§max 2.6
0.8
2.6 (edge)
Bouts trackedcoveragemax 35
4
35

† 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
Janos Olah: No height on file
Mark Heffron: 5′11″
Reachnot held
Janos Olah: No reach on file
Mark Heffron: 72″
Agenot held
Janos Olah: No date of birth
Mark Heffron: 34
Stance
Janos Olah: Not recorded
Mark Heffron: Orthodox

Janos Olah left, Mark Heffron right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

How They Win

Tracked bouts only
Janos Olah0 wins · from 4 tracked bouts

Janos Olah: no tracked wins in the 4 bouts Kill The Body has ingested.

No tracked wins for Olah yet.

Mark Heffron30 wins · from 35 tracked bouts

Mark Heffron: 30 tracked wins — 24 by KO/TKO (80%) and 6 on the cards (20%). Counted from 35 bouts Kill The Body has ingested.

24 by KO/TKO 80%6 on the cards 20%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Janos Olah 4, Mark Heffron 35 — 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

Janos Olah last boxed on Aug 1, 2015 — 4,099 days ago. Olah had lost four straight.LLLL

Luisa Jul 2010Shihepo Jan 2012Sanavia Apr 2013Heffron Aug 20150.8 tracked bouts per year

Mark Heffron last boxed on May 25, 2024 — 879 days ago. Heffron had won one in a row before losing by stoppage to Christian M'billi.WWLWL

Clarke Jul 2022Bulacio Sep 2022Cullen Sep 2023Ksendzov Feb 2024M'billi May 20242.6 tracked bouts per year

Common Questions

With the rows behind them
Have Janos Olah and Mark Heffron ever fought each other?
Yes. Janos Olah and Mark Heffron met once on August 1, 2015, and Mark Heffron won by KO in round 1.
The meeting

LAug 1, 2015 · Heffron · KO R1

Head to Head ↓
Who has the better record, Olah or Heffron?
Janos Olah is 0-4 across the 4 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.
Records · win %

Olah0–40%

Heffron30–4–187.1%

The Numbers ↓
Who has more knockouts, Olah or Heffron?
Janos Olah has 0 knockout wins and Mark Heffron has 24. Mark Heffron has more.
Knockout wins · KO rate

Olah0

Heffron2480%

The Numbers ↓
Do Olah and Heffron have any common opponents?
Kill The Body's bout data shows no opponents that both Janos Olah and Mark Heffron have faced.
How much fight data does Kill The Body have on Olah and Heffron?
This comparison is drawn from 4 bouts tracked for Janos Olah and 35 bouts tracked for Mark Heffron. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Olah4bouts

Heffron35bouts

How They Win ↓

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