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Kill The Body

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Damian Knyba vs Marcin Siwy — record, stats and common opponents compared

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Damian Knyba

Marcin Siwy

Damian Knyba (18-1) and Marcin Siwy (4-1 across 5 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.

Knyba

18

Wins11 KO · 61%

1

Loss

0

Draws19 tracked bouts

Siwy

Tracked record

4–1

counted from 5 bouts Kill The Body has ingested

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

Knyba leads 1–0

Damian Knyba and Marcin Siwy have met 1 time; Knyba leads 1–0.

Damian Knyba and Marcin Siwy have met 1 time; Knyba leads 1–0.
Met2025Jun 21Series
Damian KnybaFighter AWWon1–0W–L
Marcin SiwyFighter BLLost0–1W–L
ResultRTDR81Meeting

The Numbers

Knyba 5 · Siwy 0 of 5 measurable rows
KnybaSiwy
Record†
18-1 (edge)4-1
Win %0–100%
94.7% (edge)
80%
Wins by knockoutmax 11
11 (edge)
2
KO ratenot comparable
61.11%—
Stoppage rate (tracked wins)‡0–100%
61% (edge)
50%
Times stopped‡levelmax 1
1
1
Title reignslevelmax 0
0
0
Bouts per year§max 3.7
3.7 (edge)
0.6
Bouts trackedcoveragemax 19
19
5

† 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
Damian Knyba: 6′7″
Marcin Siwy: No height on file
Reachnot held
Damian Knyba: 86″
Marcin Siwy: No reach on file
Agenot held
Damian Knyba: 30
Marcin Siwy: No date of birth
Stance
Damian Knyba: Orthodox
Marcin Siwy: Not recorded

Damian Knyba left, Marcin Siwy right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

How They Win

Tracked bouts only
Damian Knyba18 wins · from 19 tracked bouts

Damian Knyba: 18 tracked wins — 11 by KO/TKO (61%) and 7 on the cards (39%). Counted from 19 bouts Kill The Body has ingested.

11 by KO/TKO 61%7 on the cards 39%

Marcin Siwy4 wins · from 5 tracked bouts

Marcin Siwy: 4 tracked wins — 2 by KO/TKO (50%) and 2 on the cards (50%). Counted from 5 bouts Kill The Body has ingested.

2 by KO/TKO 50%2 on the cards 50%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Damian Knyba 19, Marcin Siwy 5 — 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

Damian Knyba has won once since losing by stoppage to Agit Kabayel. Knyba last boxed on Sep 4, 2026 — 48 days ago.WWWLW

Wawrzyk Feb 2025Siwy Jun 2025Dawejko Oct 2025Kabayel Jan 2026Jr. Sep 20263.7 tracked bouts per year

Marcin Siwy had won four in a row before losing by stoppage to Damian Knyba. Siwy last boxed on Jun 21, 2025 — 489 days ago.WWWWL

Sprott Nov 2016Mazikin May 2019Nascimento Nov 2021Booker Mar 2022Knyba Jun 20250.6 tracked bouts per year

Common Questions

With the rows behind them
Have Damian Knyba and Marcin Siwy ever fought each other?
Yes. Damian Knyba and Marcin Siwy met once on June 21, 2025, and Damian Knyba won by RTD in round 8.
The meeting

WJun 21, 2025 · Knyba · RTD R8

Head to Head ↓
Who has the better record, Knyba or Siwy?
Damian Knyba is 18-1 and Marcin Siwy is 4-1 across the 5 bouts Kill The Body has tracked. Damian Knyba has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
Records · win %

Knyba18–194.7%

Siwy4–180%

The Numbers ↓
Who has more knockouts, Knyba or Siwy?
Damian Knyba has 11 knockout wins and Marcin Siwy has 2. Damian Knyba has more.
Knockout wins · KO rate

Knyba1161.1%

Siwy2

The Numbers ↓
Do Knyba and Siwy have any common opponents?
Kill The Body's bout data shows no opponents that both Damian Knyba and Marcin Siwy have faced.
How much fight data does Kill The Body have on Knyba and Siwy?
This comparison is drawn from 19 bouts tracked for Damian Knyba and 5 bouts tracked for Marcin Siwy. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Knyba19bouts

Siwy5bouts

How They Win ↓

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