Jul 4

Jul 4 - Jul 5

4th of July Boat Races

SE

Zimovia Strait

Wrangell, AK

Jul 5

Jul 5 - Jul 6

2025 Madison Regatta

INB-UNL

Ohio River

Madison, IN

Jul 11

Jul 11 - Jul 13

Les Régates de Valleyfield

SE-INB

St-Laurence River

Salaberry-de-Valleyfield, CN

Jul 12

Jul 12 - Jul 13

Black Lake Regatta Inboard Summe...

VINTAGE-INB

Black Lake

Olympia, WA

Jul 12 - Jul 13

Rock Falls River Chase

MOD-SO-J CLSES

Rock River

Rock Falls, IL

Jul 12 - Jul 13

Leo Fry Memorial

OB RR

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

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

Salt Spring Reservoir

Copperopolis, CA

Jul 17

Jul 17 - Jul 20

Ocean Cup - Pompano Beach, FL ar...

OS

Atlantic Ocean

Pompano Beach, FL

Jul 19

Jul 19 - Jul 20

2024 ALTON MIDWEST NATIONALS

OPC

MISSISSIPPI RIVER

Alton, IL

Jul 19 - Jul 20

Thunder on the Choptank

INB

Choptank River

Cambridge, MD

Jul 19 - Jul 20

Northland Mardi Gras Gran Prix

OPC

Flambeau River

Ladysmith, WI

Jul 23

Jul 23 - Jul 27

2025 APBA/ USTS PRO National Cha...

PRO-KPH;N

Lake DePue

DePue, IL, IL

Jul 25

Jul 25 - Jul 27

Leonardtown Bash on the Bay

VINTAGE

Breton Bay

Leonardtown, MD

Jul 25 - Jul 27

APOLLO APBA GOLD CUP

SE-VINTAGE-INB-UNL

McNary Pool, Columbia River

Kennewick, WA

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Professional Outboard Menu

Professional Outboard

Professional-Outboard

Professional Racing Outboard (PRO) is the most diverse and electrifying category the APBA has to offer. With 19 classes, PRO boats speeds range from moderate to blazing fast, old tech to cutting edge tech and cost ranges from extremely affordable to substantial investments. Looking for power? Completion engines in the PRO category can run at upwards of 13,000 RPMs - compare that to a typical stock race car that runs at 7,000 RPMs and you'll understand why we think water beats pavement any day.

How do you choose the best class for you? PRO Boats are roughly 9 to 14 feet long and weigh 100 to 250 pounds. Most are made of wood; but carbon fiber, honeycomb and other high-tech materials are also used. Most drivers kneel in the cockpit; some boats are driven in a lay-down position; some have the driver seated. Typically the left hand works the spring-loaded throttle and the right hand handles the steering wheel.

The boats are of two distinct designs-Hydros and Runabouts.

Hydros ride on a cushion of air; the boat contacts the water's surface on two sponsons (projections) and the propeller. The design is generally unrestricted, challenging those who wish to experiment in boat design and construction.

Runabouts have certain restrictions, like minimum lengths. While there is great variety in runabout design, generally they have a flat riding surface, tapered to a point in front, and do not channel air under the hull. While, typically slower than Hydros, the thrills of racing runabouts are unmatched, just watch a runabout round a buoy and you'll see the difference!

Thirteen of the PRO classes are based primarily on motor displacement. They are sometimes referred to as "bore and stroke" classes. The maximum displacements of bore and stroke classes are 125cc (128.75cc), 175cc, 250cc (257.5cc), 350cc, 500cc, 700cc, and 1100cc (1133cc). There are no minimum weights in these classes, and in the hydro classes, there are few restrictions on hulls. The three largest hydro classes, 500ccH, 700ccH, and 1100ccH must utilize a reinforced cockpit (capsule) with the driver seated. The 125cc classes must use one cylinder motors. The 1100cc Runabout must carry two persons, a driver and a "rider". Most bore and stroke classes utilize a fuel based on methanol and oil.

The K PRO Hydro class is a class for kids only. The OSY400 class is the USA version of the largest UIM powerboat racing class in the world. K PRO Hydro and OSY400 are restricted to gasoline and oil fuel. The C Service and C Racing classes are based on American built fishing and racing motors from the 1930s to the 1950s.

Professional Outboard Resources

Professional Outboard Classes