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Source: https://www.kswmma.com/storage/2025-10/1760801716-bartosinski2.png

Fighter

Adrian Bartosiński

"Bartos"

IG FB TAP SHER WIKI PHOT

29Win

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1Loss

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0Draw

KSW Welterweight Champion

ORGANIZATION

KSW

Nationality

🇵🇱 Poland

Weight Class

Welterweight

Age

fighters.dateOfBirth

Aug 25, 1995

Height

180.34 cm

Reach

182.1 cm

Birth City

Rawa Mazowiecka

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Gym

Octopus Lodz

Manager

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Fighting out of

Lodz, Poland

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Active

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fighters.availability.AVAILABLE

Last Fight

Mar 2026

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fighters.estimatedEarnings

—

Win Methods

KO/TKO

62%18

Submission

14%4

Decision

24%7

Loss Methods

KO/TKO

Submission

100%1

Decision

Fight History

Result	Opponent	Event	Method	Round	Date
W	Madars Bertholds-Fleminas	KSW 116 - Bartosinski vs. Fleminas	DECISION SPLIT	5 (5:00)	Mar 14, 2026
W	Muslim Tulshaev	KSW 113 - Bartosinski vs. Tulshaev	KO TKO	3 (4:56)	Dec 20, 2025
W	Andrzej Grzebyk	KSW 105: Bartosiński vs. Grzebyk	DECISION UNANIMOUS	5 (5:00)	Apr 26, 2025
L	Mamed Khalidov	KSW 100: Khalidov vs. Bartosiński	SUBMISSION	2 (2:48)	Nov 16, 2024
W	Igor Michaliszyn	KSW 94: Bartosiński vs. Michaliszyn	SUBMISSION	3 (4:50)	May 11, 2024
W	Salahdine Parnasse	KSW 89: Bartosinski vs. Parnasse	DECISION UNANIMOUS	5 (5:00)	Dec 16, 2023
W	Adrian Szczepaniak	KSW 81 - Bartosinski vs. Szczepaniak	—	—	Apr 22, 2023
W	Artur Szczepaniak	KSW 81 - Bartosinski vs. Szczepaniak	KO TKO	1 (1:47)	Apr 22, 2023
W	Krystian Kaszubowski	KSW 76 - Parnasse vs. Rajewski	KO TKO	1 (4:58)	Nov 12, 2022
W	Andrzej Grzebyk	KSW 67 - De Fries vs. Stosic	SUBMISSION	2 (0:33)	Feb 26, 2022
W	Michal Michalski	KSW 62 - Kolecki vs. Szostak	—	—	Jul 17, 2021
W	Michal Michalski	KSW 62 - Kolecki vs. Szostak	KO TKO	1 (1:53)	Jul 17, 2021
W	Lionel Padilla	KSW 59 - Fight Code	KO TKO	3 (4:05)	Mar 20, 2021
W	Piotr Walawski	Tylko Jeden - Odcinek 6	KO TKO	3 (0:23)	Apr 17, 2020
W	Kamil Dolgowski	Tylko Jeden - Odcinek 3	KO TKO	1 (3:00)	Mar 20, 2020
W	Konstantin Linnik	Wirtuoz Challenge	KO TKO	1 (1:05)	Dec 6, 2019
W	Krystian Bielski	Fight Exclusive Night 26: The Greatness	KO TKO	2 (2:15)	Oct 12, 2019
W	Alexander Shingarenko	RWC 3	KO TKO	1 (2:41)	Jul 5, 2019
W	Vladislav Schepanskyi	Wirtuoz Challenge 2	KO TKO	1 (2:30)	Apr 6, 2019
W	Jaroslaw Lech	Wirtuoz Challenge 1	KO TKO	2 (3:10)	Sep 22, 2018
W	Wojciech Zuchnik	TFL 13	DECISION UNANIMOUS	3 (5:00)	Mar 23, 2018

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fighters.articlesAndNews

KSW 116: Bartosinski vs. Fleminas Full Results

Cageside Press2026-03-14

Adrian Bartosinski defeated Madars Fleminas by split decision to make his fifth defense of the KSW welterweight championship at KSW 116.

KSW 105: Bartosinski vs. Grzebyk Full Results

Cageside Press2025-04-26

Bartosinski defended his KSW welterweight title against Andrzej Grzebyk at KSW 105 in Lodz, Poland.

Bartosinski defeats Tulshaev for fourth title defense

Tapology2025-12-20

Bartosinski made his fourth title defense with a third-round TKO victory over Muslim Tulshaev at KSW 113, returning from an eight-month injury layoff.