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May 12

HARM Vintage Unlimited Spring Te...

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Lake Washington

Seattle, WA

May 15

May 15 - May 17

Tom Thornton Jr regatta

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Mattanawcook Lake

Lincoln, ME

May 16

May 16 - May 17

Harford County Spring Nationals

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Edgewood, MD

May 16 - May 17

2026 Spring Kickoff

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Nicolaus, CA

May 16 - May 17

Phantom race Days

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Mukwonago, WI

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Boatnik 2026

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Grants Pass, OR

May 23

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Newberg Memorial Weekend Boat Ra...

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Newberg , OR

May 23 - May 24

2026 Spring Franklin Regatta

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Justus Lake

Franklin, PA, PA

May 23 - May 24

Cambridge Classic

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Cambridge, MD

May 29

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Inboard Driving School

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SPRINGFIELD, OH

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Water Follies Spring Testing

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Kennewick, WA

May 30 - May 31

Fireside 500

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Presque Isle, Michigan, MI

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16th Annual Harry Brinkman Memor...

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Huntington, IN

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Clark County Fairgrounds, Champions Park Lake

Springfield, OH

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Jun 6 - Jun 7

Hardys Race for the Lake

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Decatur, IL, IL

Jun 6 - Jun 7

Piney Point Rumble on the River

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ST. GEORGES CREEK

PINEY POINT, MD

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1.5 Litre Stock

1.5 Litre Stock

1.5 Litre Stock ("T" class) hydroplanes race at 90+ mph. These small, light and racy hydros are a great starting point for young drivers or for budget teams. They generate all the competitive excitement of the bigger classes, but their smaller size, virtually stock components, and dependable 4 cylinder Toyota engine add a degree of economy to following the boat racing trail.

1.5 Litre Stock Specifications

Minimum Length:14' 6"
Minimum Weight:825 lbs including driver
Engine:4 cylinder Toyota SOHC 1587cc (97 cubic inches)
Fuel:Gasoline per APBA specs
Approximate Speed:90mph

1.5 Litre Stock High Point Winners

YearDriver/OwnerRacesPoints
2023STEVE WALDE142175
2022TKO RACING/ THOMPSON BROTHERS RACING LLC152663
2021DOUGLAS W HAGATHA61255
2019DOUGLAS W HAGATHA81650
2018DOUGLAS W HAGATHA91800
2017DOUGLAS W HAGATHA102550
2016DOUGLAS W HAGATHA122425
2015TKO RACING/ THOMPSON BROTHERS RACING LLC112175
2014TKO RACING/ THOMPSON BROTHERS RACING LLC142563
2013DOUGLAS W HAGATHA122213
2012DOUGLAS W HAGATHA142148
2011DOUGLAS W HAGATHA152958
2010STEVE ARMSTRONG243840
2009GEORGE KENNEDY JR153093
2008JOHN SHAW183381
2007KELLY ALLEN153063
2006KELLY ALLEN153136
2005JAMES SHANE153008
2004JAMES SHANE153020
2003ROBERT WILSON153125
2002JAMES SHANE153105

1.5 Litre Stock National Champions

YearDriver/Owner
2022TKO RACING/ THOMPSON BROTHERS RACING LLC
2021DOUGLAS W HAGATHA
2019DOUGLAS W HAGATHA
2018DOUGLAS W HAGATHA
2017DOUGLAS W HAGATHA
2016DOUGLAS W HAGATHA
2015TKO RACING/ THOMPSON BROTHERS RACING LLC
2014DOUGLAS W HAGATHA
2013GEORGE KENNEDY JR
2012DOUGLAS W HAGATHA
2011GEORGE KENNEDY JR
2010GEORGE KENNEDY JR
2009KASEY BROWNING
2008GEORGE KENNEDY JR
2007KASEY BROWNING
2006GEORGE KENNEDY JR
2005JAMES SHANE
2004JAMES SHANE
2003ROBERT WILSON

1.5 Litre Stock Records

RecordSiteDriver/OwnerSpeed
5 mile/3 laps
WORLD
May 14, 2006
Yelm, WA
Kelly Shane
Kelly Shane
80.819
5 mile/4 laps
WORLD
Sep 23, 2007
Washington Township, MI
Brandon Kennedy
Brandon Kennedy
76.120
5 mile/5 laps
APBA
Apr 17, 2010
Portsmouth, VA
Brandon Kennedy
Brandon Kennedy
73.493
Kilo
WORLD
Oct 16, 2004
Lincoln City, OR
James Shane
James Shane
94.774
1/4 mile
APBA
Sep 28, 2013
New Martinsville, WA
Brandon Kennedy
Brandon Kennedy
96.174