Apr 11

Apr 11 - Apr 13

2025 Jesup Championships

PRO-MOD-SO-J CLSES

Lake Lindsay Grace

Jesup, GA

Apr 12

Apr 12 - Apr 13

The 2025 Blue Water Resort & Cas...

INB-MOD-SO-OPC-J CLSES

Colorado River

Parker, AZ

Apr 12

2024 9th Annual Kenmore Hydropla...

SE-VINTAGE-PRO-KPH-MOD-SO-J CLSES

Lake Washington

Kenmore, WA, WA

Apr 19

Apr 19 - Apr 20

2025 Moses Lake Spring Regatta

PRO-MOD-SO

Cascade Park Moses Lake

Moses Lake, WA

Apr 19 - Apr 20

Salmon River Jet Boat Race

SE-JRR

Salmon River

Riggins, ID

Apr 26

Apr 26

Freeport Riverfest 2024

OPC

Old Brazos River

Freeport, TX

Apr 26 - Apr 27

Region 6 Test & Tune

VINTAGE-INB-PRO-KPH-MOD-SO-OPC-J CLSES

Caesar Creek Lake

Waynesville, OH

May 3

May 3 - May 4

Lake Havasu

OS;D

Lake Havasu

Lake Havasu, AZ

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 3 - May 4

D.B. Cooper Regatta

PRO-KPH-MOD-SO-J CLSES

Silver Lake

Castle Rock, WA

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

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2.5 Litre Modified

2.5 Litre Modified

The 2.5 Litre Modified ("A" class) hydroplane races at speeds over 130 mph - creatively. Few engine restrictions apply beyond prohibiting superchargers and setting a displacement limit of 166 cubic inches; engine modifications are limited only by the racer's imagination.

2.5 Litre Modified Specifications

Minimum Length:16'
Minimum Weight:1225-1325 lbs. depending on engine type
Engine:Maximum displacement of 166 cubic inches
Fuel:Methanol (alcohol) or Racing gasoline per APBA specs
Approximate Speed:130mph

2.5 Litre Modified High Point Winners

YearDriver/OwnerRacesPoints
2023JESTON BURNETT122168
2022NICK BONONCINI152775
2021DOUG MARTIN142593
2020NORMAN CAMERON1200
2019NICK BONONCINI152813
2018BARRY EACRET152475
2017KEVIN KREITZER4200
2016DOUGLAS HAVELL JR7955
2015JIM AID7573
2014R ROYCE RICHARDS101400
2013R ROYCE RICHARDS71120
2012R ROYCE RICHARDS112171
2011R ROYCE RICHARDS132245
2010R ROYCE RICHARDS152440
2009R ROYCE RICHARDS152335
2008ROBERT HALL151750
2007ROBERT HALL152505
2006JUSTIN WEYMOUTH152436
2005JUSTIN WEYMOUTH152288
2004JOHN SHEWBROOKS JR152885
2003JOHN SHEWBROOKS JR152636
2002JOHN SHEWBROOKS JR153014

2.5 Litre Modified National Champions

YearDriver/Owner
2022STEVE LINN
2021MARISSA BARTELS
2019NORMAN CAMERON
2018NORMAN CAMERON
2016DOUGLAS HAVELL JR
2015R ROYCE RICHARDS
2014R ROYCE RICHARDS
2012JIM AID
2011R ROYCE RICHARDS
2010R ROYCE RICHARDS
2009R ROYCE RICHARDS
2008R ROYCE RICHARDS
2007DON MASHBURN
2006GEORGE ENGLISH
2005CHARLES A MILLER SR
2004DON MASHBURN
2002DALE WAMSLEY

2.5 Litre Modified Records

RecordSiteDriver/OwnerSpeed
5 mile/3 laps
WORLD
Apr 24, 2022
Yelm, WA
Tom Thompson
Joan English
105.37
5 mile/4 laps
WORLD
Jul 12, 2009
Olympia, WA
Tom Thompson
G. English and R. Richards
104.112
5 mile/5 laps
WORLD
Apr 11, 2010
Yelm, WA
Tom Thompson
G. English and R. Richards
95.995
Kilo
WORLD
Oct 16, 2005
Lincoln City, OR
Dustin Echols
Justin Weymouth
137.279
1/4 mile
APBA
Sep 30, 2012
New Martinsville, WV
Robert Kennedy
Greg Isaac
124.228