Fighter

Mariusz Ksiazkiewicz

"The Iron Pol"

11-3-0KSW #7Light Heavyweight Canada

CanadaLast 5

Amateur MMA 3-1

NEXT FIGHT

No upcoming fight scheduled.

Mariusz Ksiazkiewicz holds a professional MMA record of 11-3-0. Their full professional MMA career spans 14 bouts on record. Mariusz Ksiazkiewicz has won 11 fights: 5 by KO/TKO, 5 by submission, 1 by decision. Of 3 career losses, 1 came by KO/TKO and 1 by submission. In the UFC, Mariusz Ksiazkiewicz lands 0.93 significant strikes per minute with 45% accuracy and averages 4.00 takedowns per 15 minutes. Most recent fight: September 20, 2025. Tracked organizations: KSW, UFC.

Profile

Height: 6'3"191 cm
Weight: 185 lbs84 kg
Reach: 75"191 cm
Stance: Southpaw
DOB: 1989-10-04
Age: 36
Nationality: Canada
Birthplace: Winnipeg, Manitoba, Canada

Career stats

UFC careerRecord: 8-1-0 · Source: UFCStats.com

Striking

Strikes landed0.93per min

45% accuracy

Strikes absorbed3.40per min

39% avoided

Grappling

Takedowns landed4.00per 15 min

100% success

Takedowns stuffed0%

Submission attempts2.0per 15 min

Career history

LOSS
vs Sergiusz Zajac
KSWKSW 110 - Grzebyk vs. Tulshaev· Sep 20, 2025· Light Heavyweight· 11-2 vs 8-1
KO
R1 · 1:07
WIN
vs Rafael Carvalho
Iowa Fight Series 2· Apr 13, 2024· Light Heavyweight· 10-2 vs 17-7
TKO
R4 · 0:47
LOSS
vs Eli Aronov
Unified MMA 45· May 27, 2022· Middleweight· 10-1 vs 5-0
SUB
R2 · 4:32
WIN
vs Alessandro Gambulino
LFA 130: Ksiazkiewicz vs. Gambulino· Apr 22, 2022· Middleweight· 9-1 vs 12-3
TKO
R1 · 1:29
WIN
vs Graham Park
Unified MMA 42· Dec 17, 2021· 8-1 vs 8-2
TKO
R1 · 1:25
LOSS
vs Mário Sousa
UFCDWCS 4.9· Nov 10, 2020· Middleweight· 8-0 vs 11-1
UD
R3 · 5:00
WIN
vs Guilherme Miranda
Teofista: Fight For The Troops· Nov 9, 2019· Middleweight· 7-0 vs 18-8
SUB
R1 · 4:07
WIN
vs Jo Vallée
TKO Fight Night 1· Aug 2, 2018· Middleweight· 6-0 vs 7-2
SUB
R3 · 1:13
WIN
vs Douglas McFresh
Alaska FC 126· Oct 19, 2016· Light Heavyweight· 5-0 vs 5-0
TKO
R1 · 1:20
WIN
vs Micah Brakefield
Prestige FC 2· Mar 12, 2016· Welterweight· 4-0 vs 6-6
TKO
R2 · 5:00
WIN
vs Steve Dubeck
KOTC: Out Cold· Nov 15, 2013· Catchweight· 3-0 vs 5-6
SUB
R2 · 3:53
WIN
vs Ash Mashreghi
AFC 16: Uprising· Mar 23, 2013· Welterweight· 2-0 vs 0-1
SUB
R1 · 1:55
WIN
vs Dejan Kajić
AFC 11: Takeover· Sep 15, 2012· Catchweight· 1-0 vs 2-1
UD
WIN
vs Henry Rowsell
· May 13, 2011· Welterweight· 0-0 vs 0-2
SUB
R1 · 0:27

Career history data via Tapology.

Official KSW Ranking

Mariusz Ksiazkiewicz's standing in the official KSW rankings.

Current: #7 Light Heavyweight
Peak: #7 Light Heavyweight
First ranked: Aug 1, 2026
Times ranked: 2

Light Heavyweight

View full KSW rankings →

UFCalendar Power Index rating

Current: 1602▼22
Peak: 1679Apr 22, 2022
Rated fights: 14

See the full Power Index →

Frequently asked questions

When does Mariusz Ksiazkiewicz fight next?

Mariusz Ksiazkiewicz has no confirmed upcoming fight.

What is Mariusz Ksiazkiewicz's record?

Mariusz Ksiazkiewicz's professional MMA record is 11-3-0.

Who is Mariusz Ksiazkiewicz fighting next?

Mariusz Ksiazkiewicz's next opponent has not been announced.

Who did Mariusz Ksiazkiewicz fight last?

Mariusz Ksiazkiewicz most recently fought Sergiusz Zajac at KSW 110 - Grzebyk vs. Tulshaev on Saturday, September 20, 2025, LOSS (Knockout).

What weight class does Mariusz Ksiazkiewicz fight in?

Mariusz Ksiazkiewicz fights at Light Heavyweight.

How many knockouts does Mariusz Ksiazkiewicz have?

Mariusz Ksiazkiewicz has 5 wins by KO/TKO and 5 wins by submission.

How tall is Mariusz Ksiazkiewicz?

Mariusz Ksiazkiewicz is 6'3" (191 cm) tall.

How much does Mariusz Ksiazkiewicz weigh?

Mariusz Ksiazkiewicz weighs 185 lbs (84 kg).

What is Mariusz Ksiazkiewicz's reach?

Mariusz Ksiazkiewicz has a reach of 75" (191 cm).

How old is Mariusz Ksiazkiewicz?

Mariusz Ksiazkiewicz is 36 years old (born Oct 4, 1989).

Where is Mariusz Ksiazkiewicz from?

Mariusz Ksiazkiewicz is from Canada.

CAREER SUMMARY