Featherweight: 136-145 lbs.

Artur Sowinski and Kleber Koike Erbst compete for the inaugural KSW featherweight championship.
1	Artur Sowinski	def.	Kleber Koike Erbst	Decision (unanimous) @ 5:00 of R3	KSW 33: Materla vs. Khalidov	11.28.15
		def.	Fabiano da Conceicao	Decision (unanimous) @ 5:00 of R3	KSW 34: New Order	03.05.16
2	Marcin Wrzosek	def.	Artur Sowinski	TKO (doctor stoppage) @ 2:55 of R2	KSW 37: Circus Of Pain	12.03.16
3	Kleber Koike Erbst	def.	Marcin Wrzosek	Decision (unanimous) @ 5:00 of R3	KSW 38: Colosseum	05.27.17
Kleber Koike Erbst is stripped of the KSW featherweight championship after failing to make weight for his KSW 41 title defense. Kleber Koike Erbst and Mateusz Gamrot compete for the vacant KSW featherweight championship.
4	Mateusz Gamrot	def.	Kleber Koike Erbst	Decision (unanimous) @ 5:00 of R5	KSW 46: Narkun vs. Khalidov 2	12.01.18
Mateusz Gamrot goes inactive in the featherweight division in order to defend the KSW lightweight championship.  The KSW featherweight championship is not defended during this time yet remains occupied by Gamrot. Roman Szymanski and Salahdine Parnasse compete for the interim KSW featherweight championship.
INT	Salahdine Parnasse	def.	Roman Szymanski	TKO (punches) @ 3:40 of R2	KSW 48: Szymanski vs. Parnasse	04.27.19
		def.	Ivan Buchinger	Decision (unanimous) @ 5:00 of R5	KSW 52: The Race	12.07.19
Mateusz Gamrot vacates the KSW featherweight championship after allowing his contract with the promotion to expire. Contenders have yet to be announced to compete for the KSW featherweight championship.