Sebastian Decowski

"Joker"

6-1-0

PolandLast 5

Amateur MMA 19-2Kickboxing 1-0

Last fight: Loss vs Tobiasz Le · Unanimous Decision · Apr 18, 2026

LAST FIGHT

LOSSvs Tobiasz LeUD · R3 5:00

KSWKSW 117: Pawlak vs Khalidov·April 18, 2026

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Sebastian Decowski holds a professional MMA record of 6-1-0. Decowski has won 6 fights: 4 by KO/TKO, 2 by submission, 0 by decision. Decowski also has 1 recorded Kickboxing bout. Most recent fight: April 18, 2026. Tracked organizations: KSW.

Profile

Height: 5'9"175 cm
Weight: 146 lbs66 kg
Reach: 66"168 cm
Nationality: Poland
Birthplace: Rzeszow, Poland

Career stats

Pro MMARecord: 6-1-0 · Source: UFCalendar

Striking

Strikes landed1.97per min

Strikes absorbed4.12per min

Grappling

Takedowns landed2.69per 15 min

38% success

Takedowns stuffed0%

Submission attempts1.8per 15 min

Where they rank

All-time boards where Sebastian Decowski sits in the top 25.

KSW

Recent & upcoming opponents

Career history

LOSS
vs Tobiasz Le
KSW 117: Pawlak vs Khalidov· Apr 18, 2026· Bantamweight· 6-1 vs 7-2
UD
R3 · 5:00
WIN
vs Przemyslaw Gorny
KSW 110: Grzebyk vs Tulshaev· Sep 20, 2025· Bantamweight· 6-0 vs 6-5
SUB
R1 · 1:44
WIN
vs Krzysztof Braciszewski
SSW Fight Night 3· Apr 5, 2025· Bantamweight· 5-0 vs 1-3
SUB
WIN
vs Zoltan Segedi
Strife 11· Dec 14, 2024· Bantamweight· 4-0 vs 4-11
TKO
R1 · 0:38
WIN
vs Sardor Ochilov
FEN 55: Abdurzakov vs. Pietrzak· Jun 15, 2024· Featherweight· 3-0 vs 3-2
TKO
R1 · 1:38
WIN
vs Hama Dara
FSC 5: Hardcorowe Kaszëbë· Oct 8, 2022· Catchweight· 2-0 vs 0-1
TKO
WIN
vs Wiktor Adamski
SSW Fight Night 1· May 7, 2022· Catchweight· 1-0 vs 0-1
TKO

WIN
vs Dominik Dymiński
Armia Fight Night Special Edition· May 8, 2021· Catchweight· 19-2 vs 8-3
UD
LOSS
vs Shamad Erzanukaev
Armia Fight Night 9· Jan 22, 2021· Bantamweight· 18-2 vs 6-0
SD
WIN
vs Konrad Król
Wieczór Walk 7· Oct 2, 2020· Bantamweight· 18-1 vs 0-1
SUB
R1 · 2:56
WIN
vs Jakub Drozdowski
Krwawy Sport 1· Jun 20, 2020· Bantamweight· 17-1 vs 22-4
SD
WIN
vs Abdallah Bellaoui
Carpathian Warriors 8· Feb 15, 2020· Bantamweight· 16-1 vs 0-2
TKO
R1 · 1:51
WIN
vs Maksymilian Podgórski
Blood Fight Night 2· Oct 26, 2019· Bantamweight· 15-1 vs 0-3
UD
LOSS
vs Shamad Erzanukaev
Armia Fight Night 5· Apr 5, 2019· Bantamweight· 14-1 vs 4-0
UD
WIN
vs Grzegorz Joniak
Blood Fight Night 1· Oct 27, 2018· Bantamweight· 14-0 vs 0-1
SUB
R2 · 2:30
WIN
vs Robert Koszowski
Carpathian Warriors 4· May 26, 2018· Bantamweight· 13-0 vs 6-2
SUB
R1 · 1:50
WIN
vs Giuseppe Ferro
Amatorska Liga MMA· Apr 11, 2018· Featherweight· 12-0 vs 5-5
SUB
R1 · 1:36
WIN
vs Kacper Kuchmacz
ALMMA 140· Nov 19, 2017· Bantamweight· 11-0 vs 3-1
SUB
R1 · 1:28
WIN
vs Robert Gromada
ALMMA 140· Nov 19, 2017· Bantamweight· 10-0 vs 2-1
DEC
WIN
vs Krystian Kuś
ALMMA 140· Nov 19, 2017· Bantamweight· 9-0 vs 0-1
SUB
R1 · 0:47
WIN
vs Jakub Tomczak
ALMMA 140· Nov 19, 2017· Bantamweight· 8-0 vs 0-1
SUB
R1 · 0:42
WIN
vs Dawid Niedźwiedzki
Extreme Fight Cage 6· Nov 4, 2017· Catchweight· 7-0 vs 1-1
TKO
R3 · 2:53
WIN
vs Maciej Berkieta
ALMMA 132: Puchar Polski MMA 2017· May 14, 2017· Featherweight· 4-0 vs 0-2
SUB
R1 · 0:26
WIN
vs Giorgi Esiava
ALMMA 132: Puchar Polski MMA 2017· May 14, 2017· Featherweight· 4-0 vs 0-1
DEC
WIN
vs Szymon Lemańczyk-Dalmer
ALMMA 132: Puchar Polski MMA 2017· May 14, 2017· Featherweight· 4-0 vs 0-1
SUB
R1 · 3:25
WIN
vs Giuseppe Ferro
ALMMA 120: Mistrzostwa Podkarpacia· Nov 5, 2016· Featherweight· 3-0 vs 3-4
SUB
R1 · 1:46
WIN
vs Giuseppe Ferro×1Title bout · Title win #1
ALMMA 106: Puchar Podkarpacia· Apr 10, 2016· Featherweight· 2-0 vs 1-1
SUB
R1 · 1:36
WIN
vs Dominik Oślizło
ALMMA 106: Puchar Podkarpacia· Apr 10, 2016· Featherweight· 1-0 vs 0-2
SUB
R1 · 0:38

Title bout· ×N = title win number N in that promotion

UFCalendar Power Index rating

Current: 1662▼25
Peak: 1687Sep 20, 2025
Rated fights: 7

See the full Power Index →

Frequently asked questions

When does Sebastian Decowski fight next?

Sebastian Decowski has no confirmed upcoming fight.

What is Sebastian Decowski's record?

Sebastian Decowski's professional MMA record is 6-1-0.

Who is Sebastian Decowski fighting next?

Sebastian Decowski's next opponent has not been announced.

Who did Sebastian Decowski fight last?

Sebastian Decowski most recently fought Tobiasz Le at KSW 117: Pawlak vs Khalidov on Saturday, April 18, 2026, LOSS (Unanimous Decision).

What weight class does Sebastian Decowski fight in?

Sebastian Decowski fights at Bantamweight.

How many knockouts does Sebastian Decowski have?

Sebastian Decowski has 4 wins by KO/TKO and 2 wins by submission.

How tall is Sebastian Decowski?

Sebastian Decowski is 5'9" (175 cm) tall.

How much does Sebastian Decowski weigh?

Sebastian Decowski weighs 146 lbs (66 kg).

What is Sebastian Decowski's reach?

Sebastian Decowski has a reach of 66" (168 cm).

Where is Sebastian Decowski from?

Sebastian Decowski is from Poland.

Get Sebastian Decowski's fight history and stats as JSON with the MMA Fight Data API →

CAREER SUMMARY