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11-2-0 (W-L-D)
Loss breakdown not available.
Štefan Vojčák is a Slovak heavyweight fighter, interim KSW champion since September 2026. A former unsuccessful challenger for the full title against Phil De Fries, he fought his way back to the interim belt in under a year.
Born April 2, 1990, in Bratislava, Štefan Vojčák practices Brazilian jiu-jitsu, holding a purple belt, and trains at the Octagon Fighting Academy in Bratislava. He made his professional MMA debut in September 2021, at age 31, beating Evgeniy Golub by first-round TKO at OKTAGON 27. He continued on the Central European regional circuit, beating László Kiss by TKO on March 12, 2022, at RFA: Warm-Up, then Stefan Stanković by submission on July 16, 2022, at the Serbian Battle Championship, Dritan Barjamaj by submission on August 6, 2022, at the German MMA Championship, and Ion Grigore by submission on November 12, 2022, at RFA 6, taking his record to five wins with no losses.
On February 25, 2023, Vojčák won a unanimous decision over Sofiane Boukichou at UAE Warriors 36, in Abu Dhabi. He then joined the KSW, where he suffered his first career loss on July 15, 2023, by KO against Darko Stošić at KSW 84. He bounced back on November 11, 2023, beating Kamil Gawryjołek by first-round TKO at KSW 88, then added two more KO or TKO wins, over Ricardo Prasel on May 11, 2024, at KSW 94, and over Michal Martínek on October 19, 2024, at KSW 99.
On October 18, 2025, at KSW 111 in Třinec, Vojčák challenged Phil De Fries for the KSW heavyweight title and lost by third-round TKO, his second career setback. He bounced back on June 19, 2026, submitting Arkadiusz Wrzosek by choke at KSW 119. On September 19, 2026, at KSW 121 in Liberec, he faced Marcin Wójcik for the interim heavyweight title, after De Fries had not defended the belt in the meantime, and won by fourth-round TKO, following a head kick and follow-up punches. Vojčák thus became interim KSW champion, with a unification bout announced against Phil De Fries, still holder of the full title.
Vojčák looks for the finish, with six wins by KO or TKO and four by submission out of eleven total wins, against a single decision. His purple belt in Brazilian jiu-jitsu gives him a constant submission threat for a heavyweight, which he pairs with punching power that has produced most of his fastest finishes, as with the head kick that opened the door to his win over Marcin Wójcik. An orthodox fighter, he stands 6’5″ (196 cm) with a 6’7″ (201 cm) reach, a frame that lets him keep his distance before going for the finish.
Data updated on November 11, 2026. Record and measurements cross-checked against official results and Wikipedia. Text written by the MMA Official editorial team.
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