Mar 13

Mar 13 - Mar 15

Spring Thunder Tavares Fl.

VINTAGE

Lake Dora

Tavares, FL

Mar 14

Mar 14 - Mar 15

63rd Annual Region 9 Bud David ...

OB RR-INB-PRO-KPH-MOD-SO-OPC-J CLSES

Thermalito Afterbay

Oroville, CA

Apr 10

Apr 10 - Apr 12

2026 Jesup Championships

PRO-KPH-MOD-SO-J CLSES

Lake Lindsay Grace

Jesup, GA

Apr 11

Apr 11 - Apr 12

The 2026 Blue Water Resort & Cas...

INB-MOD-SO-J CLSES

Colorado River

Parker, AZ

Apr 18

Apr 18 - Apr 19

Salmon River Jet Boat Race

SE-JRR

Salmon River

Riggins, ID

Apr 25

Apr 25 - Apr 26

2026 Moses Lake Stock/Mod Wester...

MOD-SO;R-PRO-KPH-J CLSES

Moses Lake

Moses Lake, WA

May 9

May 9 - May 17

2026 World Jet Boat Marathon Cha...

JRR;W

Payett,Salmon.Clearwater,Snake,St.Joe rivers

Emmet, Idaho , ID

May 15

May 15 - May 17

Thunder on Cocoa Beach

OS;N

Atlantic

Cocoa Beach FL, FL

May 16

May 16 - May 17

Harford County Spring Nationals

INB

Bush River

Edgewood, MD

May 29

May 29 - May 31

Inboard Driving School

INB

Champions Lake Park

SPRINGFIELD, OH

May 30

May 30

Spring Testing

VINTAGE-INB-UNL

Columbia River

Kennewick, WA

Jun 5

Jun 5 - Jun 7

Rumble on the River

VINTAGE

Piney Point, Md.

City, ST

Jun 5 - Jun 7

Piney Point Rumble on the River

VINTAGE

St. George\'s Creek

St. George’s Creek, MD

Jun 6

Jun 6 - Jun 7

Hardys Race for the Lake

INB;N

Lake Decatur

Decatur, IL, IL

Jun 6 - Jun 7

Queen Marinette Regatta

PRO-KPH

Menominee River

Marinette, WI

Jun 13

Jun 13 - Jun 14

Entiat Vintage Raceboat Regatta

VINTAGE

Lake Entiat

Entiat, WA

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350CC Hydro

350CC Hydro

No description available

350CC Hydro Specifications

Minimum Length:
Minimum Weight:
Engine:Any motor over 257.5cc up to and including 350cc
Fuel:
Approximate Speed:

350CC Hydro High Point Winners

YearDriver/OwnerRacesPoints
2023JOSH HARNACK102771
2022JIMMY SMITH31600
2021ZACHARY MALHIOT41600
2018TIM FIHN82900
2017KEVIN VALENTINE61802
2016OLIVIA VALENTINE61269
2015JAMIE NILSEN72700
2014JAMIE NILSEN104450
2013JAMIE NILSEN83125
2012ZACHARY MALHIOT113159
2011ZACHARY MALHIOT122111
2010ZACHARY MALHIOT103369
2009CHRIS HELLSTEN52225
2008ZACHARY MALHIOT82900
2007ZACHARY MALHIOT102794
2006ZACHARY MALHIOT72025
2005BILL DIAMOND72253
2004BILL DIAMOND102900
2003CHRIS HELLSTEN72200

350CC Hydro National Champions

YearDriver/Owner
2023KURTIS NYDAHL
2021JOHN PALMQUIST
2018CHRIS HELLSTEN
2014KEVIN ELLISON
2013JAMIE NILSEN
2012ZACHARY MALHIOT
2011DAVID MITCHELL
2010CHRIS HELLSTEN
2009CHRIS HELLSTEN
2008JEFF KUGLER
2007ZACHARY MALHIOT
2006ZACHARY MALHIOT
2005DAVID MITCHELL
2004DAVID MITCHELL
2003DAVID MITCHELL
2002CHRIS HELLSTEN

350CC Hydro Records

RecordSiteDriver/OwnerSpeed
3 mile/3 laps
APBA
Sep 14, 2024
Yelm, WA
John Palmquist
Mike Schmidt
89.102
3 mile/4 laps
APBA
Sep 15, 2019
Yelm, WA
Ken Hehr
Ken Hehr
76.634
5 mile/3 laps
APBA
Mar 31, 1996
Lakeland, FL
Chris Hellsten
Chris Hellsten
93.168
5 mile/4 laps
WORLD
Sep 19, 1999
Yelm, WA
J. Sean McKean
J. Sean McKean
90.657
5 mile/5 laps
APBA
Apr 14, 1996
Lake Alfred, FL
Chris Hellsten
Chris Hellsten
84.270
Kilo
WORLD
Nov 24, 1995
Parker, AZ
Sean McKean
Sean McKean
113.408
1/4 mile
APBA
Oct 12, 2024
Lincoln City, OR
John Palmquist
John Palmquist
109.957