Ultimate Fighting Calendar
Sergiusz Zajac
Fighter

Sergiusz Zajac

9-2-0PolandPoland
Amateur MMA 10-9
NEXT FIGHT

No upcoming fight scheduled.

UFCal Elo rating

Current
1575▼46
Peak
1621Sep 20, 2025
Rated fights
4
15001550160020252026Aug 24, 2024 — 1546Mar 8, 2025 — 1590Sep 20, 2025 — 1621Mar 14, 2026 — 15751575

See all Elo ratings →

CAREER SUMMARY

Sergiusz Zajac holds a professional MMA record of 9-2-0. Their full professional MMA career spans 14 bouts on record. Sergiusz Zajac has won 11 fights: 10 by KO/TKO, 0 by submission, 1 by decision. Of 3 career losses, 2 came by KO/TKO and 1 by submission. Most recent fight: March 14, 2026. Tracked organizations: KSW.

Profile

Height
6'4"193 cm
Weight
206 lbs93 kg
Reach
74"188 cm
DOB
1998-10-09
Age
27
Nationality
Poland

Career history

  1. LOSS
    vs Damian Piwowarczyk
    KSWKSW 116 - Bartosinski vs. Fleminas· Mar 14, 2026· Light Heavyweight· 9-1 vs 10-4
    TKO
    R2 · 1:22
  2. WIN
    vs Mariusz Ksiazkiewicz
    KSWKSW 110 - Grzebyk vs. Tulshaev· Sep 20, 2025· Light Heavyweight· 8-1 vs 11-2
    KO
    R1 · 1:07
  3. WIN
    vs Michal Dreczkowski
    KSWKSW 104 - Kuberski vs. Romanowski· Mar 8, 2025· Light Heavyweight· 7-1 vs 5-0
    KO
    R1 · 4:00
  4. WIN
    vs Kleber Silva
    KSWKSW 97 - Bajor vs. Scheffel· Aug 24, 2024· 210 lb Catchweight· 6-1 vs 22-12
    TKO
    R1 · 1:36
  5. WIN
    vs Ramon Drum
    Babilon MMA 45· Jun 1, 2024· Catchweight· 5-1 vs 1-1
    TKO
    R1 · 2:20
  6. WIN
    vs Bartlomiej Gladkowicz
    Babilon MMA 42· Jan 27, 2024· Light Heavyweight· 4-1 vs 10-4
    UD
  7. WIN
    vs Dominik Owsiany
    Babilon MMA 38· Sep 22, 2023· Light Heavyweight· 3-1 vs 2-3
    TKO
    R1 · 4:31
  8. WIN
    vs Wincenty Krawczyk
    Carpathian Warriors 10· Oct 1, 2022· Light Heavyweight· 2-1 vs 0-0
    TKO
    R1 · 2:50
  9. WIN
    vs Łukasz Kulpa
    Babilon MMA 30· Jul 8, 2022· Light Heavyweight· 1-1 vs 3-2
    TKO
    R1 · 2:45
  10. WIN
    vs Paweł Całkowski
    Prime Show MMA 1· Feb 19, 2022· Light Heavyweight· 0-1 vs 0-0
    TKO
  11. LOSS
    vs Adam Biegański
    The War 1· Jun 11, 2021· 2-1
    TKO
  12. WIN
    vs Dawid Rachwał
    The War 1· Jun 11, 2021· 1-1
    TKO
  13. WIN
    vs Michał Więcławski
    The War 1· Jun 11, 2021· 0-1
    TKO
  14. LOSS
    vs Łukasz Olech
    Opolscy Wojownicy 5· Nov 27, 2020· Catchweight· 0-0 vs 0-0
    SUB

Career history data via Tapology.

Frequently asked questions

What is Sergiusz Zajac's record?

Sergiusz Zajac's professional MMA record is 9-2-0.

When does Sergiusz Zajac fight next?

Sergiusz Zajac has no confirmed upcoming fight.

Who is Sergiusz Zajac fighting next?

Sergiusz Zajac's next opponent has not been announced.

Who did Sergiusz Zajac fight last?

Sergiusz Zajac most recently fought Damian Piwowarczyk at KSW 116 - Bartosinski vs. Fleminas on Saturday, March 14, 2026 — LOSS (TKO).

What weight class does Sergiusz Zajac fight in?

Sergiusz Zajac fights at Light Heavyweight.

How many knockouts does Sergiusz Zajac have?

Sergiusz Zajac has 10 wins by KO/TKO and 0 wins by submission.

How tall is Sergiusz Zajac?

Sergiusz Zajac is 6'4" (193 cm) tall.

How much does Sergiusz Zajac weigh?

Sergiusz Zajac weighs 206 lbs (93 kg).

What is Sergiusz Zajac's reach?

Sergiusz Zajac has a reach of 74" (188 cm).

How old is Sergiusz Zajac?

Sergiusz Zajac is 27 years old (born Oct 9, 1998).

Where is Sergiusz Zajac from?

Sergiusz Zajac is from Poland.