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Jul 4 - Jul 5

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Zimovia Strait

Wrangell, AK

Jul 5

Jul 5 - Jul 6

2025 Madison Regatta

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Ohio River

Madison, IN

Jul 11

Jul 11 - Jul 13

Les Régates de Valleyfield

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St-Laurence River

Salaberry-de-Valleyfield, CN

Jul 12

Jul 12 - Jul 13

Black Lake Regatta Inboard Summe...

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Black Lake

Olympia, WA

Jul 12 - Jul 13

Rock Falls River Chase

MOD-SO-J CLSES

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Rock Falls, IL

Jul 12 - Jul 13

Leo Fry Memorial

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Rogue River

Agness, OR

Jul 12 - Jul 13

Wild Ones Regatta

SO;D-J CLSES

Grass Lake

Grass Lake, MI

Jul 12 - Jul 13

Fulton Championships

MOD-SO-J CLSES

Lake Neatahwanta

Fulton, NY

Jul 12 - Jul 13

Midsummer Race at Salt Spring

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Copperopolis, CA

Jul 17

Jul 17 - Jul 20

Ocean Cup - Pompano Beach, FL ar...

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Atlantic Ocean

Pompano Beach, FL

Jul 19

Jul 19 - Jul 20

2024 ALTON MIDWEST NATIONALS

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MISSISSIPPI RIVER

Alton, IL

Jul 19 - Jul 20

Thunder on the Choptank

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Choptank River

Cambridge, MD

Jul 19 - Jul 20

Northland Mardi Gras Gran Prix

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Flambeau River

Ladysmith, WI

Jul 23

Jul 23 - Jul 27

2025 APBA/ USTS PRO National Cha...

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Lake DePue

DePue, IL, IL

Jul 25

Jul 25 - Jul 27

Leonardtown Bash on the Bay

VINTAGE

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Leonardtown, MD

Jul 25 - Jul 27

APOLLO APBA GOLD CUP

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McNary Pool, Columbia River

Kennewick, WA

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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