The year 2017 was the 14th year in the history of the Konfrontacja Sztuk Walki, a mixed martial arts promotion based in Poland. 2017 began with KSW 38.
KSW 38: Live in Studio was a mixed martial arts event held by Konfrontacja Sztuk Walki on April 7, 2017, at the Studio Apricor in Warsaw, Poland.
The following fighters were awarded bonuses:
KSW 39: Colosseum was a mixed martial arts event held by Konfrontacja Sztuk Walki on May 27, 2017, at the PGE Narodowy in Warsaw, Poland.
Former KSW Heavyweight Champion, Karol Bedorf, tore his Achilles' tendon and was unable to fight Michal Kita. He was replaced by Michaà  Andryszak.
KSW 39 became the 2nd highest MMA attendance record with 57,776, behind only the event from 2002. It also beat UFC 193 attendance.
The following fighters were awarded bonuses:
KSW 40: Dublin was a mixed martial arts event held by Konfrontacja Sztuk Walki on October 22, 2017, at the 3Arena in Dublin, Ireland.
Anzor Azhiev was not able to fight due to food poisoning. Debutant Paweà  Polityà Âo faced Antun RaÃÂiÃÂ.
Norman Parke missed his weight, at 70.8 kg. The fight between Parke and Gamrot was therefore a non-title fight. Parke was fined 30% of his purse for missing weight.
James McSweeney was not permitted to fight after he was not cleared by Safe MMA Ireland. Jay Silva stepped in as a replacement against Mariusz Pudzianowski in the main event.
The following fighters were awarded bonuses:
KSW 41: Mankowski vs. Soldic was a mixed martial arts event held by Konfrontacja Sztuk Walki on December 23, 2017, at the Spodek in Katowice, Poland.
Dricus du Plessis is out of the KSW 41 main event due to a hand injury and Borys Mankowski will defend his welterweight title against Roberto Soldic.
Kleber Koike Erbst didn't make weight, the KSW featherweight belt is vacated. Artur Sowià Âski fights for the vacant featherweight title.
The following fighters were awarded bonuses: