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Marcelo Luiz Nascimento vs Marcin Siwy — record, stats and common opponents compared

Marcelo Luiz Nascimento

Marcin Siwy

Marcelo Luiz Nascimento (18-23) 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.

Nascimento

18

Wins16 KO · 89%

23

Losses

0

Draws41 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

Siwy leads 1–0

Marcelo Luiz Nascimento and Marcin Siwy have met 1 time; Siwy leads 1–0.

Marcelo Luiz Nascimento and Marcin Siwy have met 1 time; Siwy leads 1–0.
Met2021Nov 21Series
Marcelo Luiz NascimentoFighter ALLost0–1W–L
Marcin SiwyFighter BWWon1–0W–L
ResultKOR11Meeting

The Numbers

Nascimento 3 · Siwy 3 of 6 measurable rows
NascimentoSiwy
Record†
18-234-1 (edge)
Win %0–100%
43.9%
80% (edge)
Wins by knockoutmax 16
16 (edge)
2
KO ratenot comparable
88.89%—
Stoppage rate (tracked wins)‡0–100%
89% (edge)
50%
Times stopped‡max 16
16
1 (edge)
Title reignslevelmax 0
0
0
Bouts per year§max 2.5
2.5 (edge)
0.6
Bouts trackedcoveragemax 41
41
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
Marcelo Luiz Nascimento: 6′5″
Marcin Siwy: No height on file
Agenot held
Marcelo Luiz Nascimento: 46
Marcin Siwy: No date of birth
Stance
Marcelo Luiz Nascimento: Orthodox
Marcin Siwy: Not recorded

Marcelo Luiz Nascimento 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
Marcelo Luiz Nascimento18 wins · from 41 tracked bouts

Marcelo Luiz Nascimento: 18 tracked wins — 16 by KO/TKO (89%) and 2 on the cards (11%). Counted from 41 bouts Kill The Body has ingested.

16 by KO/TKO 89%2 on the cards 11%

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 — Marcelo Luiz Nascimento 41, 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

Marcelo Luiz Nascimento last boxed on Sep 16, 2023 — 1,133 days ago. Nascimento had lost nine straight.LLLLL

McKean Mar 2019Larduet Nov 2019Siwy Nov 2021Bezus Feb 2022Salami Sep 20232.5 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 Marcelo Luiz Nascimento and Marcin Siwy ever fought each other?
Yes. Marcelo Luiz Nascimento and Marcin Siwy met once on November 21, 2021, and Marcin Siwy won by KO in round 1.
The meeting

LNov 21, 2021 · Siwy · KO R1

Head to Head ↓
Who has the better record, Nascimento or Siwy?
Marcelo Luiz Nascimento is 18-23 and Marcin Siwy is 4-1 across the 5 bouts Kill The Body has tracked. Marcin Siwy has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
Records · win %

Nascimento18–2343.9%

Siwy4–180%

The Numbers ↓
Who has more knockouts, Nascimento or Siwy?
Marcelo Luiz Nascimento has 16 knockout wins and Marcin Siwy has 2. Marcelo Luiz Nascimento has more.
Knockout wins · KO rate

Nascimento1688.9%

Siwy2

The Numbers ↓
Do Nascimento and Siwy have any common opponents?
Kill The Body's bout data shows no opponents that both Marcelo Luiz Nascimento and Marcin Siwy have faced.
How much fight data does Kill The Body have on Nascimento and Siwy?
This comparison is drawn from 41 bouts tracked for Marcelo Luiz Nascimento and 5 bouts tracked for Marcin Siwy. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Nascimento41bouts

Siwy5bouts

How They Win ↓

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Marcelo Luiz Nascimento vs Marcin Siwy — Records, Stats & Common Opponents