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Fight Matrix
Writer's Game PR, LLC - Public Relations Agency
Writer's Game PR, LLC - Public Relations Agency

Sergiusz Zajac

  Sergiusz Zajac's profile at Sherdog 

Sergiusz Zajac's profile at Tapology 

Birth Date: 1998-10-09
Last 5: W W W W L
Association: Spartakus Rzeszow
Pro Debut Date: 2020-11-27
Pro Record: 9-2-0
Current Ranking:
#77 Light Heavyweight
'Big League' Record: 3-1-0
Last 3 Years: 6-1-0
Win Finish %: 88.9%
Combat Age: 27
Quality Perf. %: 72.7%
Last Quality Perf.: 2025-09-20
540 Metric: .579
Rating Points: 61
Highest Quarterly Ranking: 10/01/2025

#44 Light Heavyweight
Last Fight Date: 3/14/2026 [KSW]
Last Opponent: [#41 LHW] Damian Piwowarczyk
Opponent's Last 5: L L W W W

Complete Professional MMA Fight History
Fighter rankings represent most recent generated quarterly rating prior to the fight

  Opponent Outcome
L Damian Piwowarczyk
#55 Light Heavyweight 		TKO (Punches)
Round 2
  KSW 116 Bartosinski vs. Fleminas
Saturday, March 14th 2026
W Mariusz Ksiazkiewicz
#54 Light Heavyweight 		KO (Punches)
Round 1
  KSW 110 - Grzebyk vs. Tulshaev
Saturday, September 20th 2025
W Michal Dreczkowski
#138 Light Heavyweight 		KO (Knee)
Round 1
  KSW 104 - Kuberski vs. Romanowski
Saturday, March 8th 2025
W Kleber Silva
#143 Light Heavyweight 		TKO (Submission to Elbows)
Round 1
  KSW 97 - Bajor vs. Scheffel
Saturday, August 24th 2024
W Ramon Drum TKO (Elbows)
Round 1
  Babilon MMA 45 - Rakowicz vs. Politylo
Saturday, June 1st 2024
W Bartlomiej Gladkowicz
#193 Light Heavyweight 		Decision (Unanimous)
Round 3
  Babilon MMA 42 - Gladkowicz vs. Zajac
Saturday, January 27th 2024
W Dominik Owsiany TKO (Elbows)
Round 1
  Babilon MMA 38 - Lopaczyk vs. Jakimowicz
Friday, September 22nd 2023
W Wincenty Krawczyk TKO (Knees and Punches)
Round 1
  Carpathian Warriors 10 - Road to Babilon
Saturday, October 1st 2022
W Lukasz Kulpa TKO (Punches)
Round 1
  Babilon MMA 30 - Sudolski vs. Mysiala
Friday, July 8th 2022
W Pawel Calkowski TKO (Punches)
Round 3
  Prime Show MMA 1 - Zadyma
Saturday, February 19th 2022
L Lukasz Olech Submission
Round 1
  Opolscy Wojownicy 5: Bitwa nad Odra
Friday, November 27th 2020
  Opponent Event Outcome
L Damian Piwowarczyk
#55 Light Heavyweight 		  KSW 116 Bartosinski vs. Fleminas
Saturday, March 14th 2026 		TKO (Punches)
Round 2
W Mariusz Ksiazkiewicz
#54 Light Heavyweight 		  KSW 110 - Grzebyk vs. Tulshaev
Saturday, September 20th 2025 		KO (Punches)
Round 1
W Michal Dreczkowski
#138 Light Heavyweight 		  KSW 104 - Kuberski vs. Romanowski
Saturday, March 8th 2025 		KO (Knee)
Round 1
W Kleber Silva
#143 Light Heavyweight 		  KSW 97 - Bajor vs. Scheffel
Saturday, August 24th 2024 		TKO (Submission to Elbows)
Round 1
W Ramon Drum   Babilon MMA 45 - Rakowicz vs. Politylo
Saturday, June 1st 2024 		TKO (Elbows)
Round 1
W Bartlomiej Gladkowicz
#193 Light Heavyweight 		  Babilon MMA 42 - Gladkowicz vs. Zajac
Saturday, January 27th 2024 		Decision (Unanimous)
Round 3
W Dominik Owsiany   Babilon MMA 38 - Lopaczyk vs. Jakimowicz
Friday, September 22nd 2023 		TKO (Elbows)
Round 1
W Wincenty Krawczyk   Carpathian Warriors 10 - Road to Babilon
Saturday, October 1st 2022 		TKO (Knees and Punches)
Round 1
W Lukasz Kulpa   Babilon MMA 30 - Sudolski vs. Mysiala
Friday, July 8th 2022 		TKO (Punches)
Round 1
W Pawel Calkowski   Prime Show MMA 1 - Zadyma
Saturday, February 19th 2022 		TKO (Punches)
Round 3
L Lukasz Olech   Opolscy Wojownicy 5: Bitwa nad Odra
Friday, November 27th 2020 		Submission
Round 1

Quarterly Generated Historical Rankings
Rating bar represents the fighter's standing relative to the top of the division at the time

Date ↑ ↓ Rank Record Points
04/01/2026 30 #78 Light Heavyweight 9-2-0
61
01/01/2026 4 #48 Light Heavyweight 9-1-0
85
10/01/2025 38 #44 Light Heavyweight 9-1-0
87
07/01/2025 7 #82 Light Heavyweight 8-1-0
52
04/01/2025 26 #89 Light Heavyweight 8-1-0
52
01/01/2025 2 #115 Light Heavyweight 7-1-0
43
10/01/2024 34 #117 Light Heavyweight 7-1-0
43
07/01/2024 17 #151 Light Heavyweight 6-1-0
31
04/01/2024 43 #134 Light Heavyweight 5-1-0
32
01/01/2024 27 #177 Light Heavyweight 4-1-0
25
10/01/2023 124 #150 Light Heavyweight 4-1-0
28
07/01/2023 1 #274 Light Heavyweight 3-1-0
17
04/01/2023 1 #275 Light Heavyweight 3-1-0
17
01/01/2023 5 #276 Light Heavyweight 3-1-0
17
10/01/2022 NR #281 Light Heavyweight 3-1-0
17


A fighter's rank (US) state is assigned based on the state that the fighter most frequently fought in professionally, within the past three years. If there is a tie, the most recent state is used. The Win-Loss-Draw record for the fighter in the "Big Leagues". The Big Leagues refer to the top organizations based on a statistical analysis we performed. Some organizations were counted as one, due to mergers, etc. A quality performance is a fight in which the fighter fought an acceptable opponent, and substantiated their current rating (at the time) based on the outcome. At it's most basic level, one can equate "combat age" to "dog years" in that it will mirror the basic human lifecycle. With this computation, we expect fighters to hit their respective "peak" in the years that your typical adult "peaks" in life, somewhere between 25 and 40. We will expect most fighters to start their descent at some point in their 40s and be far removed from their peak by 60. This is an experimental metric that attempts to reflect a fighter's recent opposition quality. The metric goes back 1,080 days, and looks at all the fighter's opponents' W-L-D records within a window of 540 days before, and 540 days after their respective bout(s) with the fighter. All of the records are added up and the cumulative win percentage is presented by this metric in a "strength of schedule" format. These ranking sets have been generated by a recent version of the software, using recent data and will not match previously published issues of the rankings, especially since a majority of these generated sets are for dates much earlier than the site’s inception.

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