2024 GP CHALLENGE Follow @hrlhydroplane @grand_prix_america_hydroplanes The fastest 16 Grand Prix Hydroplanes in the world will battle head to head in a 4 race tournament. 🏁 June 29/30 - Guntersville, AL 🇺🇸 June 29/30 - Brockville , ON 🇨🇦 July 5-7 - Madison, IN 🇺🇸 July 12-14 - Valleyfield, QC 🇨🇦 Bring on the rumble of the Big Blocks 🔥 #GPchallenge #HRLhydroplanes #GPAhydroplanes #Montwork #Bayrippers | Hydroplane Racing League

GP-577 LUCAS OIL 2025 Grand Prix Challenge @grandprixhydros @hrlhydroplane Driver Ken Lupton screams down the front stretch on his way to a Heat Race win during the Grand Prix Challenge at Guntersville Hydrofest last weekend 🏁 @luptonracing @gvillehydrofest GRAND PRIX CLASS Engine - Supercharged V8 #BigBlock Length - 26 ft. Width - 12.6 ft. Weight - 3250 lbs Shot by @meyerhydros with @h1_unlimited_hydroplanes Next stop for the GP Challenge is July 4-6 for the @madison.regatta | Hydroplane Racin