The KSW welterweight champion remains under contract through 2026
Adrian Bartosiński, the reigning KSW welterweight champion, has extended his contract through 2026. He will defend his belt against Adam Masaev at the flagship event XTB KSW 122, scheduled for Rzeszów on October 10, 2026.
To remember:
- Adrian Bartosiński remains under contract with KSW through 2026.
- He will defend his welterweight title against Adam Masaev on October 10, 2026.
- The main event of XTB KSW 122 in Rzeszów.





