Three UIM World Championship titles were decided in Chodziez, Poland, over the weekend of June 27-28, as the 2026 Hydro GP season reached its conclusion for two of its three classes. Andrea Ongari won the F.125 title, Massimiliano Cremona became the first Italian driver to win five consecutive F.250 World Championships, and Cezary Strumnik defended his OSY400 title on home water. Marcin Zielinski’s round win in F.500 retook him the outright championship lead with one round remaining.
F.125: Ongari Claims a Third UIM Discipline
Andrea Ongari arrived at Chodziez leading Gabriele Rossi by seven points in the F.125 standings, having taken the lead from him at Boretto three weeks earlier. He topped the round with 20 points, extending his advantage and securing his first F.125 World Championship.
The title adds a third UIM Formula Series discipline to Ongari’s record. He is already a World Champion in OSY400 and F.250. Rossi finishes the season as runner-up on 65 points, with fellow Italian Luca Finotti completing the podium in third on 55.
| Pos | Driver | Nat | Round 4 pts |
|---|---|---|---|
| 1 | Andrea Ongari | 🇮🇹 | 20 |
| 2 | Tobias Wahlsten | 🇸🇪 | 17 |
| 3 | Gabriele Rossi | 🇮🇹 | 15 |
| 4 | Luca Finotti | 🇮🇹 | 13 |
| 5 | Henryk Synoracki | 🇵🇱 | 11 |
| 6 | Panayot Stoyanov | 🇧🇬 | 10 |
| 7 | Deyan Yordanov | 🇧🇬 | 9 |
| 8 | Martin Chlup | 🇨🇿 | 8 |
| 9 | Ladislav Herbansky | 🇸🇰 | 7 |
| 10 | Michal Kausa | 🇵🇱 | 6 |
| 11 | Aleksander Dolacinski | 🇵🇱 | 5 |
Final F.125 championship standings: Ongari 72, Rossi 65, Finotti 55, Synoracki 50, Wahlsten 44.
F.250: Cremona Makes History as Brother Alessandro Completes His Comeback
Massimiliano Cremona sealed his fifth consecutive F.250 World Championship in Chodziez, finishing second overall behind his own brother. According to Motonautica San Nazzaro, the team behind both drivers, no Italian had previously won five straight titles in the class, which has run since the 1960s.
Nobody in the history of this category had ever achieved this before.
Massimiliano Cremona, translated from Italian, via a Motonautica San Nazzaro press statement.
The day carried extra weight for the team. Alessandro Cremona won the opening heat of the round, his first competitive win since a serious accident and a subsequent heart problem forced him out of racing. He described the win as long overdue.
It’s a dream that had been frozen for three years.
Massimiliano thanked engine builder Giuseppe Rossi by name in his own statement, crediting the team’s technical work behind the five-year run. Alessandro said he is now targeting the European Championship before returning to challenge for the F.250 world title itself next season.
| Pos | Driver | Nat | Round 4 pts |
|---|---|---|---|
| 1 | Alessandro Cremona | 🇺🇸 | 20 |
| 2 | Massimiliano Cremona | 🇮🇹 | 17 |
| 3 | Marek Peeba | 🇪🇪 | 15 |
| 4 | Thomas Mantripp | 🇬🇧 | 13 |
| 5 | Emil Emilov | 🇧🇬 | 11 |
| 6 | Wayne Turner | 🇬🇧 | 10 |
| 7 | Joonas Lember | 🇪🇪 | 9 |
| 8 | Sebastian Kecinski | 🇵🇱 | 8 |
Final F.250 championship standings: Massimiliano Cremona 77, Alessandro Cremona 67, Mantripp 49, Turner 45, Lember 40.
OSY400: Strumnik Defends World Title on Home Water
Cezary Strumnik retained his OSY400 World Championship in Chodziez, the venue where he first won the title in 2025. Strumnik won all four heats of the standalone championship, held alongside the Hydro GP classes.
Fellow Pole Jeremi Jozwiak finished second, extending a rivalry that ran to within seconds across every heat of the weekend. Lithuania’s Arvydas Dranseika completed the podium in third.
F.500: Zielinski Bounces Back to Retake the Lead
Marcin Zielinski won the round in Chodziez after a difficult third round in Boretto, where technical issues had let his rivals close the gap. The result put the defending champion back on top of the F.500 standings on 67 points, four clear of Erko Aabrams on 63.
Attila Havas, who had shared the championship lead heading into the weekend, scored only nine points in Chodziez and drops to third overall on 56. The title will be decided at the fifth and final round, in Ruse, Bulgaria, on August 22-23, alongside the standalone Circuit GT15 European Championship.
| Pos | Driver | Nat | Round 4 pts |
|---|---|---|---|
| 1 | Marcin Zielinski | 🇵🇱 | 20 |
| 2 | Erko Aabrams | 🇪🇪 | 17 |
| 3 | Giuseppe Rossi | 🇮🇹 | 15 |
| 4 | Marcel Copak | 🇨🇿 | 13 |
| 5 | Ferenc Csako | 🇷🇸 | 11 |
| 6 | Paul Hart | 🇬🇧 | 10 |
| 7 | Attila Havas | 🇭🇺 | 9 |
| 8 | David Loukotka | 🇨🇿 | 8 |
| – | Milen Marinov | 🇧🇬 | 0 |
Full Championship Standings
See the complete points table for F.125, F.250 and F.500 after every round of the 2026 UIM Hydro GP World Championship.
View the standings
John Moore is the editor of Powerboat News, an independent investigative journalism platform recognised by Google News and documented on Grokipedia for comprehensive powerboat racing coverage.
His involvement in powerboat racing began in 1981 when he competed in his first offshore powerboat race. After a career as a Financial Futures broker in the City of London, specialising in UK interest rate markets, he became actively involved in event organisation and powerboat racing journalism.
He served as Event Director for the Cowes–Torquay–Cowes races between 2010 and 2013. In 2016, he launched Powerboat Racing World, a digital platform providing global powerboat racing news and insights. The following year, he co-founded UKOPRA, helping to rejuvenate offshore racing in the United Kingdom. He sold Powerboat Racing World in late 2021 and remained actively involved with UKOPRA until 2025.
In September 2025, he established Powerboat News, returning to independent journalism with a focus on neutral and comprehensive coverage of the sport.
