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Kill The Body

and the head will die

Callum Smith vs Nieky Holzken — record, stats and common opponents compared

🇬🇧LIGHT HEAVYWEIGHT

Callum Smith

🇳🇱NETHERLANDS

Nieky Holzken

Callum Smith (31-2) and Nieky Holzken (15-2) 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.

Smith

31

Wins22 KO · 71%

2

Losses

0

Draws33 tracked bouts

Holzken

15

Wins11 KO · 73%

2

Losses

0

Draws17 tracked bouts

Head to Head

Smith leads 1–0

Callum Smith and Nieky Holzken have met 1 time; Smith leads 1–0.

Callum Smith and Nieky Holzken have met 1 time; Smith leads 1–0.
Met2018Feb 24Series
Callum SmithFighter AWWon1–0W–L
Nieky HolzkenFighter BLLost0–1W–L
ResultUD1Meeting

The Numbers

Smith 5 · Holzken 3 of 8 measurable rows
SmithHolzken
Record
31-2 (edge)15-2
Win %0–100%
93.9% (edge)
88.2%
Wins by knockoutmax 22
22 (edge)
11
KO rate0–100%
70.97%
73.33% (edge)
Stoppage rate (tracked wins)†0–100%
71%
73% (edge)
Times stopped†max 1
1
0 (edge)
Title reignsmax 2
2 (edge)
0
Bouts per year‡max 2.7
2.7 (edge)
1.3
Bouts trackedcoveragemax 33
33
17

† 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

Height+3″
Callum Smith: 6′3″ (edge)
Nieky Holzken: 6′0″
Reach+4″
Callum Smith: 78″ (edge)
Nieky Holzken: 74″
Age6 yrs apart
Callum Smith: 36
Nieky Holzken: 42
Stance
Callum Smith: Orthodox
Nieky Holzken: Not recorded

Callum Smith left, Nieky Holzken right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

How They Win

Tracked bouts only
Callum Smith31 wins · from 33 tracked bouts

Callum Smith: 31 tracked wins — 22 by KO/TKO (71%) and 9 on the cards (29%). Counted from 33 bouts Kill The Body has ingested.

22 by KO/TKO 71%9 on the cards 29%

Nieky Holzken15 wins · from 17 tracked bouts

Nieky Holzken: 15 tracked wins — 11 by KO/TKO (73%) and 4 on the cards (27%). Counted from 17 bouts Kill The Body has ingested.

11 by KO/TKO 73%4 on the cards 27%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Callum Smith 33, Nieky Holzken 17 — 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

Callum Smith has won two straight since losing by stoppage to Artur Beterbiev. Smith last boxed on Feb 22, 2025 — 606 days ago.WWLWW

Castillo Sep 2021Bauderlique Aug 2022Beterbiev Jan 2024Galvan Nov 2024Buatsi Feb 20252.7 tracked bouts per year

Nieky Holzken had won two in a row before losing a decision to Besir Ay. Holzken last boxed on Feb 7, 2026 — 256 days ago.WLWWL

Polyakov Feb 2018Smith Feb 2018Donfack Apr 2018Demaj Jul 2025Ay Feb 20261.3 tracked bouts per year

Common Questions

With the rows behind them
Have Callum Smith and Nieky Holzken ever fought each other?
Yes. Callum Smith and Nieky Holzken met once on February 24, 2018, and Callum Smith won by UD.
The meeting

WFeb 24, 2018 · Smith · UD

Head to Head ↓
Who has the better record, Smith or Holzken?
Callum Smith is 31-2 and Nieky Holzken is 15-2. Callum Smith has the higher win percentage.
Records · win %

Smith31–293.9%

Holzken15–288.2%

The Numbers ↓
Who has more knockouts, Smith or Holzken?
Callum Smith has 22 knockout wins and Nieky Holzken has 11. Callum Smith has more.
Knockout wins · KO rate

Smith2271%

Holzken1173.3%

The Numbers ↓
Do Smith and Holzken have any common opponents?
Kill The Body's bout data shows no opponents that both Callum Smith and Nieky Holzken have faced.
Who is bigger, Smith or Holzken?
Callum Smith is the taller fighter at 190 cm, 7 cm above the other. Callum Smith also has the longer reach, by 10 cm.
Height · reach

Smith190 cm198 cm reach

Holzken183 cm188 cm reach

Tale of the Tape ↓
How much fight data does Kill The Body have on Smith and Holzken?
This comparison is drawn from 33 bouts tracked for Callum Smith and 17 bouts tracked for Nieky Holzken. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Smith33bouts

Holzken17bouts

How They Win ↓

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