Skip to main content
Kill The Body

and the head will die

Jason Whateley vs Mateusz Masternak — record, stats and common opponents compared

🇦🇺AUSTRALIA

Jason Whateley

🇵🇱CRUISERWEIGHT

Mateusz Masternak

Jason Whateley (10-1) and Mateusz Masternak (50-7) 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.

Whateley

10

Wins

1

Loss

0

Draws11 tracked bouts

Masternak

50

Wins33 KO · 66%

7

Losses

0

Draws57 tracked bouts

Head to Head

Masternak leads 1–0

Jason Whateley and Mateusz Masternak have met 1 time; Masternak leads 1–0.

Jason Whateley and Mateusz Masternak have met 1 time; Masternak leads 1–0.
Met2022Oct 29Series
Jason WhateleyFighter ALLost0–1W–L
Mateusz MasternakFighter BWWon1–0W–L
ResultUD1Meeting

The Numbers

Whateley 4 · Masternak 3 of 7 measurable rows
WhateleyMasternak
Record
10-1 (edge)50-7
Win %0–100%
90.9% (edge)
87.7%
Wins by knockoutmax 33
0
33 (edge)
KO rate0–100%
0%
66% (edge)
Stoppage rate (tracked wins)†0–100%
90% (edge)
66%
Times stopped†max 2
0 (edge)
2
Title reignslevelmax 0
0
0
Bouts per year‡max 2.9
2.7
2.9 (edge)
Bouts trackedcoveragemax 57
11
57

† 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

Age4 yrs apart
Jason Whateley: 35
Mateusz Masternak: 39
Stance
Jason Whateley: Not recorded
Mateusz Masternak: Orthodox

Jason Whateley left, Mateusz Masternak right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

How They Win

Tracked bouts only
Jason Whateley10 wins · from 11 tracked bouts

Jason Whateley: 10 tracked wins — 9 by KO/TKO (90%) and 1 on the cards (10%). Counted from 11 bouts Kill The Body has ingested.

9 by KO/TKO 90%1 on the cards 10%

Mateusz Masternak50 wins · from 57 tracked bouts

Mateusz Masternak: 50 tracked wins — 33 by KO/TKO (66%) and 17 on the cards (34%). Counted from 57 bouts Kill The Body has ingested.

33 by KO/TKO 66%17 on the cards 34%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Jason Whateley 11, Mateusz Masternak 57 — 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

Jason Whateley last boxed on Oct 29, 2022 — 1,449 days ago. Whateley had won four in a row before losing a decision to Mateusz Masternak.WWWWL

Russell Dec 2019Russell Apr 2021Oganov Jun 2021Naliva Apr 2022Masternak Oct 20222.7 tracked bouts per year

Mateusz Masternak had won three in a row before losing a decision to Viddal Riley. Masternak last boxed on Apr 4, 2026 — 196 days ago.LWWWL

Billam-Smith Dec 2023Olivier Apr 2024Masson Nov 2024Djeko Oct 2025Riley Apr 20262.9 tracked bouts per year

Common Questions

With the rows behind them
Have Jason Whateley and Mateusz Masternak ever fought each other?
Yes. Jason Whateley and Mateusz Masternak met once on October 29, 2022, and Mateusz Masternak won by UD.
The meeting

LOct 29, 2022 · Masternak · UD

Head to Head ↓
Who has the better record, Whateley or Masternak?
Jason Whateley is 10-1 and Mateusz Masternak is 50-7. Jason Whateley has the higher win percentage.
Records · win %

Whateley10–190.9%

Masternak50–787.7%

The Numbers ↓
Who has more knockouts, Whateley or Masternak?
Jason Whateley has 0 knockout wins and Mateusz Masternak has 33. Mateusz Masternak has more.
Knockout wins · KO rate

Whateley0

Masternak3366%

The Numbers ↓
Do Whateley and Masternak have any common opponents?
Kill The Body's bout data shows no opponents that both Jason Whateley and Mateusz Masternak have faced.
How much fight data does Kill The Body have on Whateley and Masternak?
This comparison is drawn from 11 bouts tracked for Jason Whateley and 57 bouts tracked for Mateusz Masternak. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Whateley11bouts

Masternak57bouts

How They Win ↓

Compare someone else

6 suggested matchups

Compare Whateley with…

Compare Masternak with…

Someone else?

Release either fighter to put someone new in that slot — the other one stays put.