The Marine Prop Riders club was established in 1951 to promote Inboard Hydroplane Racing in the Detroit area.

Our drivers and owners range in age from their teens to 70-some, and represent at least seven classes of racing from the 1.0 Litre class to the thundering supercharged big-block powered Grand Prix hydros, as well as the Unlimited Hydroplanes that race in the APBA Gold Cup class on the Detroit River. We also have members in the Vintage class who run exhibition laps with the raceboats of years gone by.

We set World Records!

MPR members are involved in presenting a number of races in the region, many are drivers and others participate as crew, scorers, referees, rescue personnel and event volunteers. You're welcome to join us.

MPR Membership form for 2024

MPR By-Laws - MPR Awards Policy

Visit us at Autorama March 1-3!
February 8, 2024

Be sure to stop by our booth at Autorama in Detroit March 1st through 3rd!

2023 Winners and Awards
November 12, 2023

Congratulations to our 2023 Winners!

Overall High Points – Jeff Dobis
1 Litre Mod – Chris Ritz
2.5 Litre Stock – Jeff Dobis
2.5 Litre Mod – Steve Handy
5 Litre – Cassandra Briggs
National Modified
Vik Butvila
Grand National Hydro
– Greg Krietzer

Mario Maraldo "Prop Rider of the Year" – Steve Read
Rookie of the Year – Austin Hayes and Kyle Hayes
Hard Luck Award – Dillon Goodell
Bob Ritz "Hard Charger" Award – Rich Falcinelli
Grant Ward "Unsung Hero" Award – Dennis Scott
Doc Terry Memorial Sportsmanship Award – Tom Alfano
Jim and Elsie Edwards Person of the Year – John Bridge

CS Mott Lake - Drone video early Saturday AM
August 23, 2023

The CS Mott Lake area is gorgeous! It's perfect for hydroplane racing for many reasons including the lake itself, the fantastic Bluebell Beach viewing area, and a nice pit area. Thanks to Erat Racing for the drone video. I think I see a Drivers Meeting at the pit entrance.

Dayton Test and Tune 2022
May 5, 2022

Each year we go to a pre-season test & tune event for everyone to get back on the water and test their off-season changes. Drone footage by Dillon Goodell, then his onboard video.

MPR member Andrew Tate - 2016 H1 Rookie award
January 15, 2017

Andrew Tate was awarded the 2016 H1 Unlimited Rookie trophy.
Watch his first win in Seattle 2016, the race begins 5 minutes in:

Maraldo / King win the 2016 APBA Summer Nationals!
July 23, 2016

This race was something to see... Andrew Tate way out in front but breaks down just short of the finish line, UGH! After that what could be better than Mario Maraldo (owner) and Bobby King (driver) taking the win in Baby Doll III !