Mariusz Książkiewicz

Mariusz Książkiewicz
Born (1989-10-04) October 4, 1989
Ludwigsburg, West Germany
Other namesThe Iron Pol
NationalityCanadian, Polish
Height6 ft 3 in (1.91 m)
Weight203 lb (92 kg; 14 st 7 lb)
Division
Reach75 in (191 cm)
StyleBrazilian jiu-jitsu, Boxing
StanceSouthpaw
Fighting out ofWinnipeg, Manitoba, Canada
TeamWinnipeg Academy of Mixed Martial Arts
RankBlack belt in Brazilian jiu-jitsu
Years active2011–present
Mixed martial arts record
Total14
Wins11
By knockout5
By submission5
By decision1
Losses3
By knockout1
By submission1
By decision1
Other information
Mixed martial arts record from Sherdog

Mariusz Książkiewicz (born October 4, 1989) is a German-born Polish-Canadian professional mixed martial artist. He currently competes in the Light Heavyweight division for Konfrontacja Sztuk Walki. He is a former Unified MMA and Ignite Fights Light Heavyweight champion. He previously competed on Aggression Fighting Championship, Legacy Fighting Alliance, and Dana White's Contender Series.

Early life

Książkiewicz was born on October 4, 1989 in Ludwigsburg, West Germany to Polish parents. He moved to Winnipeg at the age of 2.[1]

Professional career

Early career

Książkiewicz made his professional debut on May 13, 2011 against Henry Rowsell. Książkiewicz won the fight via a first round submission.[2]

Aggression Fighting Championship

Książkiewicz made his debut with Aggression Fighting Championship on September 15, 2012 against Dejan Kajić. Książkiewicz won the fight via Unanimous Decision.[3]

His next fight came on March 23, 2013 against Ash Mashreghi. Książkiewicz won the fight via a first round submsision.[4]

Return to regionals

His next fight came eight months later on November 15 against Steve Dubeck. Książkiewicz won the fight via a second round submssion.[5]

After a three year hiatus, Książkiewicz returned to the cage on March 12, 2016 against Micah Brakefield. Książkiewicz won the fight via a second round TKO.[6]

On October 19, 2016, Książkiewicz made his debut with Alaska Fighting Championship against Douglas McFresh. Książkiewicz won the fight via a first round TKO.[7]

After a two year hiatus, Książkiewicz returned on August 2, 2018 against Jo Vallée under the promotion TKO Major League. Książkiewicz won the fight via a third round submission.[8]

After a year off, Książkiewicz returned on November 9, 2019 against Guilherme Miranda under the promotion Teofista. Książkiewicz won the fight via a first round submission.[9]

Dana White's Contender Series

On November 10, 2020, Książkiewicz faced Mário Sousa in the fourth season of Dana White's Contender Series. Książkiewicz lost the fight via Unanimous Decision.[10]

Unified MMA Super Middleweight champion

On December 17, 2021, Książkiewicz faced Graham Park for Park's Unified MMA Super Middleweight championship. Książkiewicz won the fight via a first round TKO, and thus claimed his first career championship.[11]

Legacy Fighting Alliance

Książkiewicz made his debut with Legacy Fighting Alliance on April 22, 2022 in the main event of LFA 130 against Alessandro Gambulino. Książkiewicz won the fight via a first round TKO.[12]

Return to Unified MMA

Książkiewicz returned to Unified MMA on May 27, 2022 against Eli Aronov. Książkiewicz lost the fight via a second round submission.[13]

Ignite Fights Light Heavyweight champion

After a two year hiatus, Książkiewicz returned against Rafael Carvalho on April 13, 2024 for the vacant Ignite Fights Light Heavyweight championship. Książkiewicz won the fight via a fourth round TKO, and thus claimed his second career championship.[14]

Konfrontacja Sztuk Walki

On July 3, 2025, Książkiewicz signed with Polish promotion, Konfrontacja Sztuk Walki (KSW).[15] He made his debut two months later on September 20 against Sergiusz Zając. Książkiewicz lost due to a knee injury in the first round.[16]

Personal life

Książkiewicz has two daughters, Paulina and Elżbieta. On April 2, 2025, news surfaced that Książkiewicz was attacked and stabbed in the heart while going to throw out the garbage by an unknown assailant. Książkiewicz put pressure on the wound, and drove himself to the hospital.[17][18]

Championships and accomplishments

Mixed martial arts

  • Unified MMA
    • Unified MMA Super Middleweight champion (One time; former)
  • Ignite Fights
    • Ignite Fights Light Heavyweight champion (One time; former)

Mixed martial arts record

Professional record breakdown
14 matches 11 wins 3 losses
By knockout 5 1
By submission 5 1
By decision 1 1
Res. Record Opponent Method Event Date Round Time Location Notes
Loss 11–3 Sergiusz Zając TKO (knee injury) KSW 110 September 20, 2025 1 1:07 Rzeszów, Poland
Win 11–2 Rafael Carvalho KO (punches) Ignite Fights: Iowa Fight Series 2 April 13, 2024 4 0:47 Marshalltown, Iowa, United States Return to Light Heavyweight. Won the vacant IF Light Heavyweight championship.
Loss 10–2 Eli Aronov Submission (arm-triangle choke) Unified MMA 45 May 27, 2022 2 4:32 Enoch, Alberta, Canada
Win 10–1 Alessandro Gambulino TKO (knee to the body and punches) LFA 130 April 22, 2022 1 1:29 New Town, North Dakota, United States Return to Middleweight.
Win 9–1 Graham Park TKO (punches) Unified MMA 42 December 17, 2021 1 1:25 Enoch, Alberta, Canada Super Middleweight debut. Won the Unified MMA Super Middleweight championship.
Loss 8–1 Mário Sousa Decision (unanimous) Dana White's Contender Series 35 November 10, 2020 3 5:00 Las Vegas, Nevada, United States
Win 8–0 Guilherme Miranda Submission (rear-naked choke) Teofista: Fight For The Troops November 9, 2019 1 4:07 Brandon, Manitoba, Canada
Win 7–0 Jo Vallée Submission (rear-naked choke) TKO Fight Night 1 August 2, 2018 3 1:13 Montreal, Quebec, Canada Return to Middleweight.
Win 6–0 Douglas McFresh TKO (elbows) Alaska FC 126 October 19, 2016 1 1:20 Anchorage, Alaska, United States Light Heavyweight debut.
Win 5–0 Micah Brakefield TKO (doctor stoppage) Prestige FC 2 March 12, 2016 2 5:00 Regina, Saskatchewan, Canada Middleweight debut.
Win 4–0 Steve Dubeck Submission (rear-naked choke) KOTC: Out Cold November 15, 2013 2 3:53 Cold Lake, Alberta, Canada Catchweight (175 lb) bout.
Win 3–0 Ash Mashreghi Submission (rear-naked choke) Aggression FC 16 March 23, 2013 1 1:55 Winnipeg, Manitoba, Canada
Win 2–0 Dejan Kajić Decision (unanimous) Aggression FC 11 September 15, 2012 3 5:00 Winnipeg, Manitoba, Canada Catchweight (171 lb) bout.
Win 1–0 Henry Rowsell Submission (rear-naked choke) Cage Fighting Manitoba 2 May 13, 2011 1 0:27 Winnipeg, Manitoba, Canada Welterweight debut.

References

  1. ^ "Mariusz Ksiazkiewicz Predicts Finish Over Graham Park In Unified 42 Main Event". Unified MMA. 17 November 2021. Retrieved 2025-08-28.
  2. ^ "CFM 2 - Cage Fighting Manitoba 2". Fight Matrix. 13 May 2011. Retrieved 2025-08-28.
  3. ^ "AFC 11 - Takeover". Sherdog. 15 September 2012. Retrieved 2025-08-28.
  4. ^ "Aggression Fighting Championship 16: Uprising". CombatReg. 23 March 2013. Retrieved 2025-08-28.
  5. ^ "KOTC: Out Cold Fight Results". ESPN. 15 November 2013. Retrieved 2025-08-28.
  6. ^ Nick Baldwin (15 March 2016). "Prestige FC 2 Recap and Results: The calm after the storm". Bloody Elbow. Retrieved 2025-08-28.
  7. ^ "Alaska FC 126: Heun vs. Matavao". MMA Town. 20 October 2016. Retrieved 2025-08-28.
  8. ^ "TKO MMA - TKO Fight Night 1". Sherdog. 2 August 2018. Retrieved 2025-08-28.
  9. ^ "Teofista - Fight For The Troops". Sherdog. 9 November 2019. Retrieved 2025-08-28.
  10. ^ Rob Tatum (10 November 2020). "Contender Series Season 4, Week 9 Results: Levy, Motta and Pinheiro Earn Contracts". Combat Press. Retrieved 2025-08-28.
  11. ^ Tomasz Nowosielski (17 December 2021). "Mariusz Książkiewicz pięknym nokautem zdobywa pas mistrza Unified MMA (WIDEO)". MMA Rocks! (in Polish). Retrieved 2025-08-28.
  12. ^ Kamil Zejma (23 April 2022). "LFA 130 – wyniki gali. Książkiewicz szybko rozbija rywala [WIDEO]". In The Cage (in Polish). Retrieved 2025-08-28.
  13. ^ Unified MMA (31 May 2022). "#Unified45 Results: Eli Aronov def. Mariusz Ksiazkiewicz by submission in Round 2 (4:32) on Friday at @RiverCreeCasino on @UFCFightPass". X (formerly Twitter). Retrieved 2025-08-28.
  14. ^ Jakub Madej (15 April 2024). "WIDEO: Nokaut potężnym kopnięciem w wykonaniu Mariusza Ksiazkiewicza. "Iron Pol" mistrzem IFS". MMA Rocks! (in Polish). Retrieved 2025-08-28.
  15. ^ Tomasz Majewski (3 July 2025). "IronPol w KSW! Mariusz Książkiewicz podpisuje kontrakt!". Fight Sport (in Polish). Retrieved 2025-08-28.
  16. ^ Bartłomiej Stachura (20 September 2025). "Ciężka kontuzja i nokaut! Sergiusz Zając ubił Mariusza Książkiewicza na KSW 110 (VIDEO)". Low King (in Polish). Retrieved 2025-09-20.
  17. ^ Jakub Fordon (2 April 2025). "Poszedł wyrzucić śmieci i cudem uniknął śmierci. Dramat "Żelaznego Polaka"". WP Sportowe Fakty (in Polish). Retrieved 2025-08-28.
  18. ^ Taylor Clark (2 April 2025). "A fighter survives a direct stab to the heart while taking out the trash at his home". Marca. Retrieved 2025-08-28.