May 3

May 3 - May 4

Norm Evans Apple Cup

VINTAGE-INB

Lake Chelan

Chelan, WA

May 3 - May 4

Port Neches Riverfest

OPC

Neches River

Port Neches, TX

May 3 - May 4

Harford County Spring Nationals

INB

Bush River

Edgewood, MD

May 3 - May 4

Spring Lock Haven Regatta

PRO-MOD-SO

Susquehanna River

Lock Haven, PA

May 10

May 10 - May 11

George Grant Memorial Race

OB RR

Trinity River

Hoopa, CA

May 10 - May 11

US Title Series Spring Shootout

PRO

Champions Park Lake

Springfield, OH

May 10 - May 11

Spring Race at Salt Spring

PRO-KPH-MOD-SO-J CLSES

Salt Spring Reservoir

Copperopolis, CA

May 16

May 16 - May 18

Thunder On Cocoa Beach

OS;N

Atlantic Ocean

Cocoa Beach , FL

May 17

May 17 - May 18

Tom Thornton Jr regatta

MOD-SO-J CLSES

Mattanawcook lake

Lincoln, ME

May 17 - May 18

Race the Joe! - St. Maries River...

SE-JRR

St. Joe River

St Maries ID, ID

May 17 - May 18

Phantom race Days

MOD-SO-J CLSES

Phantom Lake

Mukwonago, WI

May 17 - May 18

Buckingham Test & Tune 2025

VINTAGE;N

Clearlake

2850 Eastlake Dr, Kelseyville, CA 95451, CA

May 17

Water Follies Spring Testing

VINTAGE-INB-UNL

Columbia River

Kennewick, WA

May 17 - May 18

Cambridge Classic

SE-INB

Hambrooks Bay

Cambridge , MD

May 17

Regatta

SE

Body of Water

City, ST

May 17

Sprint Boat Test & Tune

SE

Ontario Speedway

Ontario, OR

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Grand Prix Hydroplane

Grand Prix Hydroplane

Grand Prix Hydroplane - supercharged competition! This professional level GP class provides all the noise and excitement you can handle. The 1500 horsepower blown V-8s, based on big block Chevrolet design, make the most noise and throw the biggest roostertails this side of anywhere! Limitations are few; beyond the 468-cubic inch engine displacement, it's Hot Rod City and up to the ingenuity of the builder. Grand Prix hydros are the biggest and baddest of the bad!

Grand Prix Hydroplane Specifications

Minimum Length:23'
Minimum Weight:2700 lbs. including driver
Engine:Supercharged Big Block Chevrolet V-8, maximum displacement 468 cubic inches
Fuel:Methanol (alcohol) or racing gasoline per APBA specs
Approximate Speed:170mph

Grand Prix Hydroplane High Point Winners

YearDriver/OwnerRacesPoints
2023JEFF BERNARD101430
2022MICHAEL GRENDELL101860
2021JEFF BERNARD71105
2019JERRY HOPP101460
2018LARRY LINN101713
2017BOB SCHELLHASE122573
2016BOB SCHELLHASE101355
2015BOB SCHELLHASE101305
2014BOB SCHELLHASE101345
2013JERRY HOPP121760
2012BOB SCHELLHASE131925
2011BOB SCHELLHASE71215
2010PIERRE MAHEU91668
2009DENNIS JOHNSON101633
2008DENNIS JOHNSON7850
2007ROBERT G ZABADY91095
2006MARIO V MARALDO60
2004MARIO V MARALDO7575
2003KEN BRODIE SR71190
2002KEN BRODIE SR5250

Grand Prix Hydroplane National Champions

YearDriver/Owner
2022ANDREW TATE
2018TKO RACING/ THOMPSON BROTHERS RACING LLC
2016MARIO V MARALDO
2015R ROYCE RICHARDS
2011MARIO V MARALDO
2010HUEY NEWPORT
2008DENNIS JOHNSON

Grand Prix Hydroplane Records

RecordSiteDriver/OwnerSpeed
5 mile/3 laps
APBA
Jun 14, 2015
Soap Lake, WA
Jerry Hopp
Jerry Hopp
110.125
5 mile/4 laps
APBA
Jul 13, 2014
Olympia, WA
Jamie Nilsen
Scott Pierce
116.89
5 mile/5 laps
WORLD
Jul 21, 2013
Waterford, MI
Bert Henderson
Bert Henderson
112.768
Kilo
APBA
Sep 21, 2019
Lincoln City, OR
Greg Hopp
Jerry Hopp
162.097
1/4 mile
APBA
Apr 2, 2016
Oroville, Ca
Jerry Hopp
Jerry Hopp
170.62