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Kill The Body

and the head will die

Jay Byrne vs Oliver Zaren — record, stats and common opponents compared

Jay Byrne

🇩🇰DENMARK

Oliver Zaren

Jay Byrne (0-4 across 4 tracked bouts) and Oliver Zaren (19-1-1) 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.

Byrne

Tracked record

0–4

counted from 4 bouts Kill The Body has ingested

Zaren

19

Wins8 KO · 42%

1

Loss

1

Draw21 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

Zaren leads 1–0

Jay Byrne and Oliver Zaren have met 1 time; Zaren leads 1–0.

Jay Byrne and Oliver Zaren have met 1 time; Zaren leads 1–0.
Met2023Jul 15Series
Jay ByrneFighter ALLost0–1W–L
Oliver ZarenFighter BWWon1–0W–L
ResultUD1Meeting

The Numbers

Byrne 0 · Zaren 4 of 4 measurable rows
ByrneZaren
Record†
0-419-1-1 (edge)
Win %0–100%
0%
92.9% (edge)
Wins by knockoutmax 8
0
8 (edge)
KO ratenot comparable
—42.11%
Stoppage rate (tracked wins)‡not comparable
—42%
Times stopped‡levelmax 1
1
1
Title reignslevelmax 0
0
0
Bouts per year§max 2.9
0.6
2.9 (edge)
Bouts trackedcoveragemax 21
4
21

† 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

Stance
Jay Byrne: Not recorded
Oliver Zaren: Southpaw

Jay Byrne left, Oliver Zaren right, as everywhere on this page. Stance is stated, not scored.

How They Win

Tracked bouts only
Jay Byrne0 wins · from 4 tracked bouts

Jay Byrne: no tracked wins in the 4 bouts Kill The Body has ingested.

No tracked wins for Byrne yet.

Oliver Zaren19 wins · from 21 tracked bouts

Oliver Zaren: 19 tracked wins — 8 by KO/TKO (42%) and 11 on the cards (58%). Counted from 21 bouts Kill The Body has ingested.

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

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Jay Byrne 4, Oliver Zaren 21 — 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

Jay Byrne last boxed on Jul 15, 2023 — 1,198 days ago. Byrne had lost four straight.LLLL

Cash Mar 2017Kelly Apr 2017Fowler Sep 2017Zaren Jul 20230.6 tracked bouts per year

Oliver Zaren has lost the most recent, to Osleys Iglesias. Zaren last boxed on Oct 8, 2026 — 17 days ago.WWWDL

Maigwisya Jun 2025Bilić Oct 2025Benitez Jan 2026Jr. Jun 2026Iglesias Oct 20262.9 tracked bouts per year

Common Questions

With the rows behind them
Have Jay Byrne and Oliver Zaren ever fought each other?
Yes. Jay Byrne and Oliver Zaren met once on July 15, 2023, and Oliver Zaren won by UD.
The meeting

LJul 15, 2023 · Zaren · UD

Head to Head ↓
Who has the better record, Byrne or Zaren?
Jay Byrne is 0-4 across the 4 bouts Kill The Body has tracked and Oliver Zaren is 19-1-1. Oliver Zaren has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
Records · win %

Byrne0–40%

Zaren19–1–192.9%

The Numbers ↓
Who has more knockouts, Byrne or Zaren?
Jay Byrne has 0 knockout wins and Oliver Zaren has 8. Oliver Zaren has more.
Knockout wins · KO rate

Byrne0

Zaren842.1%

The Numbers ↓
Do Byrne and Zaren have any common opponents?
Kill The Body's bout data shows no opponents that both Jay Byrne and Oliver Zaren have faced.
How much fight data does Kill The Body have on Byrne and Zaren?
This comparison is drawn from 4 bouts tracked for Jay Byrne and 21 bouts tracked for Oliver Zaren. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Byrne4bouts

Zaren21bouts

How They Win ↓

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