The UIM Formula 4 World Championship will return in 2026 with three rounds across Belgium, Lithuania and Italy, featuring new safety regulations including mandatory crash boxes that take effect from 1 January.
The season opens at Monz, Belgium on 14-15 May before heading to Lithuania for a combined F2 and F4 event at KlaipÄ—da on 5-7 June.
The UIM International Court of Appeal has delivered a landmark ruling that annuls a race jury decision from the F4 World Championship and establishes new precedent on jury impartiality.
William Martinsen, competing for Black Pharaoh Racing, successfully appealed a one-lap penalty imposed following Race 2 at Mons on August 24, 2025.
The UIM Council has officially adopted a trio of safety upgrades for F4, confirming mandatory crash boxes, rear-mounted balloon airbags, and a minimum weight increase from 1 January 2026.
The decision, made during the 98th UIM General Assembly on Friday 10 October, marks a major evolution in cockpit protection standards.
F4 crash boxes will become mandatory for all boats built after 1st January 2026 under proposals facing a UIM Council vote tomorrow, with detailed homologation specifications demanding multi-layer foam construction capable of absorbing 1.
2 kilojoules during drop tests to reduce driver injuries in lateral collisions.
Latvia’s Nils Slakteris emerged victorious in the thrilling finale of the UIM F4 World Championship, held on the stunning Lake Viverone in northern Italy.
The 11th Waterfestival at Viverone Lake delivered a thrilling GT30 qualifying session, with Italy’s rookie driver Mattia Andreani storming to pole position for the UIM European Championship 2025.
Saturday, 13 September 2025 SessionLocal time (CEST, UTC+2)Your time UIM GT30 – Free Trials09:15 – 10:00 UIM GT30 – Timed Trials11:30 – 12:15 UIM GT30 – Heat 116:00 – 16:30 UIM F4 – Free Trials10:00 – 10:45 UIM F4 – Timed Trials14:15 – 15:15 UIM F4 – Race 116:30 – 17:30 Sunday, 14 September 2025 SessionLocal time (CEST, UTC+2)Your time UIM GT30 – Free Trials09:00 – 09:30 UIM GT30 Heat 210:45 – 11:15 UIM GT30 Heat 314:15 – 14:45 UIM GT30 Heat 416:15 – 16:45 UIM F4 – Free Trials09:30 – 10:15 UIM F4 – Timed Trials11:15 – 12:15 UIM F4 Race 215:15 – 16:15 Times are official local time (CEST, UTC+2).
The “Your time” column automatically converts to your device’s time-zone.
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The 2025 UIM F4 World Championship will reach its dramatic conclusion this weekend in Viverone, as seventeen of the world’s finest F4 drivers descend on the picturesque shores of Lake Viverone in northern Italy for the final two rounds of the season.
With 40 championship points still available, the tension is palpable.
The 2025 UIM F4 World Championship roared into life on 23–24 August with its opening rounds at the Grand Large circuit in Mons, Belgium.
The “Mons Water Grand Prix” served up fast straights, tight corners and plenty of drama across two days of racing, giving fans a taste of what promises to be an enthralling season.
