May 16

May 16 - May 17

Harford County Spring Nationals

INB

Bush River

Edgewood, MD

May 16 - May 17

2026 Spring Kickoff

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

Lake Minden

Nicolaus, CA

May 16 - May 17

Phantom race Days

MOD-SO-J CLSES

Phantom Lake

Mukwonago, WI

May 22

May 22 - May 25

Boatnik 2026

SE-JET SPRI-OB RR-DRAG

Rogue River

Grants Pass, OR

May 23

May 23 - May 24

Newberg Memorial Weekend Boat Ra...

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

Willamette River

Newberg , OR

May 23 - May 24

2026 Spring Franklin Regatta

MOD-SO-J CLSES

Justus Lake

Franklin, PA, PA

May 23 - May 24

Cambridge Classic

INB

Hambrooks Bay

Cambridge, MD

May 29

May 29 - May 31

Inboard Driving School

INB

Champions Lake Park

SPRINGFIELD, OH

May 30

May 30

Water Follies Spring Testing

VINTAGE-INB-UNL

Columbia River

Kennewick, WA

May 30 - May 31

Fireside 500

SO;D-J CLSES

Grand Lake

Presque Isle, Michigan, MI

May 30 - May 31

16th Annual Harry Brinkman Memor...

MOD;R-KPH-SO-J CLSES

Lake Clare

Huntington, IN

Jun 2

Jun 2 - Jun 6

Solar Splash: The Intercollegiat...

SE

Clark County Fairgrounds, Champions Park Lake

Springfield, OH

Jun 6

Jun 6 - Jun 7

Hardys Race for the Lake

INB;N

Lake Decatur

Decatur, IL, IL

Jun 6 - Jun 7

Piney Point Rumble on the River

VINTAGE

ST. GEORGES CREEK

PINEY POINT, MD

Jun 6 - Jun 7

Rumble on the River

PRO-KPH

Menominee River

Marinette, WI

Jun 6 - Jun 7

Newt Grant Memorial Race

OB RR

Trinity River

Willow Creek, CA

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Factory Stock

Factory Stock

Factory Stock (formerly Pure Stock) boats must be produced and offered by manufacturer with seating for a minimum of three adults. Engines must remain completely stock as produced with the following exceptions: Airbox may be removed, Rev-limiter may be removed (carb motors only), Oil injection may be removed, Exshaust inner liner may be removed & midsections may be drilled to releave exhaust, Aftermarket external exhaust snouts are allowed

Factory Stock Specifications

Minimum Length:
Minimum Weight:1700 lbs. to 2100 lbs.
Engine:Stock Engines with a few exceptions
Fuel:Pump or standard non-oxygenated race fuel. No Fuel additives
Approximate Speed:

Factory Stock High Point Winners

YearDriver/OwnerRacesPoints

Factory Stock National Champions

YearDriver/Owner

Factory Stock Records

RecordSiteDriver/OwnerSpeed