Quick Facts
- KSW 121 takes place Saturday, September 19, 2026, at Home Credit Arena in Liberec, Czech Republic.
- Phil De Fries defends his heavyweight title against Slovakia’s Štefan Vojčák, over five rounds.
- Records on file have the champion at 29 wins and 6 losses, his opponent at 10 wins and 2 losses.
- Tapology lists the event as De Fries vs. Vojčák 2, indicating a rematch.
- Nine fights are on the card, including the five-round title bout. The night starts at 1 p.m. ET (10 a.m. PT, 7 p.m. local/CEST).
A Champion Stepping Outside Poland
KSW is leaving its usual home turf. The Polish league is setting up its 121st event at Home Credit Arena in Liberec, Czech Republic, on Saturday, September 19, 2026. The official site lists a 7 p.m. local start, which matches Central European time, with the main event expected around 11 p.m. local.
In the headline bout, Phil De Fries puts his heavyweight title on the line against Štefan Vojčák. The fight is set for five rounds, at a 265-pound limit. The league’s site lists the Briton as champion and the Slovak as the number-one contender.
The two sources agree on the records: 29 wins and 6 losses for De Fries, 10 wins and 2 losses for Vojčák. Tapology ranks them first and seventh among European heavyweights respectively, and titles the event De Fries vs. Vojčák 2, pointing to a rematch that neither page documents further.
A League Nearly Absent From the Site
That is the editorial reason for this article. The site’s KSW section currently holds a single piece of content, the profile of Mamed Khalidov. For Europe’s second-largest organization by audience, that is thin coverage.
The heavyweight division, by contrast, is one of the better-covered on the site across all circuits, and the fighter profile database helps place the few KSW fighters already documented.
The Rest of the Card: Nine Fights
The official site lists nine matchups. Michał Michalski faces Radosław Paczuski at middleweight, Łukasz Charzewski faces Josef Štummer at featherweight, Muslim Tulshaev faces Kacper Koziorzębski at welterweight, and Leo Brichta faces Kacper Formela at lightweight.
The preliminary card includes Tagir Machmudov against Djibril Nsenga at welterweight, along with three other fights. Djibril Nsenga’s name is the only French-sounding one on the night’s card, though neither source consulted specifies his nationality.
FAQ
When and where is KSW 121?
Saturday, September 19, 2026, at Home Credit Arena in Liberec, Czech Republic. The league’s official site lists a 7 p.m. local start (1 p.m. ET, 10 a.m. PT). It is KSW’s first event outside Poland in several months, the Polish league having previously run shows in Croatia and the United Kingdom as well.
Who headlines the card?
Phil De Fries, KSW’s heavyweight champion, defends his belt against Slovakia’s Štefan Vojčák, over five rounds. Records on file have the champion at 29 wins and 6 losses, against 10 wins and 2 losses for his opponent. Tapology ranks them first and seventh among European heavyweights respectively.
Can KSW 121 be watched in the United States or Europe?
The league’s official site lists Canal+ among its broadcasters for French viewers, alongside its own KSW TV platform. The Tapology profile instead mentions a pay-per-view internet stream. The two sources differ on this point, which remains to be confirmed with broadcasters closer to the event.
How many fights are on the card?
KSW’s official site lists nine matchups, including the heavyweight title fight in the main event. The lineup could still change before the official weigh-in, as is typical for any event announced several weeks in advance.
Conclusion
KSW 121 delivers a heavyweight title fight outside Poland, pitting a well-established champion against a contender ranked seventh. For international coverage, the appeal lies less in the card itself than in the chance to step outside coverage almost entirely focused on the UFC. Broadcast details remain unconfirmed between the two sources, which will shape how closely the event is followed abroad.
