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Kill The Body

and the head will die

Grzegorz Kielsa vs Jason Bergman — record, stats and common opponents compared

🇵🇱HEAVYWEIGHT

Grzegorz Kielsa

Jason Bergman

Grzegorz Kielsa (11-2) and Jason Bergman (4-12 across 16 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.

Kielsa

11

Wins3 KO · 27%

2

Losses

0

Draws14 tracked bouts

Bergman

Tracked record

4–12

counted from 16 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

Kielsa leads 1–0

Grzegorz Kielsa and Jason Bergman have met 1 time; Kielsa leads 1–0.

Grzegorz Kielsa and Jason Bergman have met 1 time; Kielsa leads 1–0.
Met2009Nov 21Series
Grzegorz KielsaFighter AWWon1–0W–L
Jason BergmanFighter BLLost0–1W–L
ResultUD1Meeting

The Numbers

Kielsa 4 · Bergman 1 of 5 measurable rows
KielsaBergman
Record†
11-2 (edge)4-12
Win %0–100%
84.6% (edge)
25%
Wins by knockoutlevelmax 3
3
3
KO ratenot comparable
27.27%—
Stoppage rate (tracked wins)‡0–100%
42%
100% (edge)
Times stopped‡max 8
0 (edge)
8
Title reignslevelmax 0
0
0
Bouts per year§max 3.3
3.3 (edge)
1.2
Bouts trackedcoveragemax 16
14
16

† 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

Agenot held
Grzegorz Kielsa: 47
Jason Bergman: No date of birth
Stance
Grzegorz Kielsa: Southpaw
Jason Bergman: Not recorded

Grzegorz Kielsa left, Jason Bergman right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

How They Win

Tracked bouts only
Grzegorz Kielsa12 wins · from 14 tracked bouts

Grzegorz Kielsa: 12 tracked wins — 5 by KO/TKO (42%), 6 on the cards (50%) and 1 by another method or unrecorded (8%). Counted from 14 bouts Kill The Body has ingested.

5 by KO/TKO 42%6 on the cards 50%1 by another method or unrecorded 8%

Jason Bergman4 wins · from 16 tracked bouts

Jason Bergman: 4 tracked wins — 4 by KO/TKO (100%). Counted from 16 bouts Kill The Body has ingested.

4 by KO/TKO 100%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Grzegorz Kielsa 14, Jason Bergman 16 — 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

Grzegorz Kielsa last boxed on Jun 30, 2010 — 5,962 days ago. Kielsa had lost two straight, after three straight wins.WWWLL

Polley Jun 2009Montiy Sep 2009Bergman Nov 2009Pajkić Mar 2010Pajkić Jun 20103.3 tracked bouts per year

Jason Bergman last boxed on Dec 12, 2020 — 2,144 days ago. Bergman had lost four straight, after one straight win.WLLLL

Williams Apr 2018Makhmudov Jan 2019Sánchez Jul 2019Thun Aug 2020Chaney Dec 20201.2 tracked bouts per year

Common Questions

With the rows behind them
Have Grzegorz Kielsa and Jason Bergman ever fought each other?
Yes. Grzegorz Kielsa and Jason Bergman met once on November 21, 2009, and Grzegorz Kielsa won by UD.
The meeting

WNov 21, 2009 · Kielsa · UD

Head to Head ↓
Who has the better record, Kielsa or Bergman?
Grzegorz Kielsa is 11-2 and Jason Bergman is 4-12 across the 16 bouts Kill The Body has tracked. Grzegorz Kielsa has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
Records · win %

Kielsa11–284.6%

Bergman4–1225%

The Numbers ↓
Who has more knockouts, Kielsa or Bergman?
Grzegorz Kielsa has 3 knockout wins and Jason Bergman has 3. Both have 3.
Knockout wins · KO rate

Kielsa327.3%

Bergman3

The Numbers ↓
Do Kielsa and Bergman have any common opponents?
Kill The Body's bout data shows no opponents that both Grzegorz Kielsa and Jason Bergman have faced.
How much fight data does Kill The Body have on Kielsa and Bergman?
This comparison is drawn from 14 bouts tracked for Grzegorz Kielsa and 16 bouts tracked for Jason Bergman. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Kielsa14bouts

Bergman16bouts

How They Win ↓

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