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

Our racers 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 for the APBA Gold Cup on the Detroit River each summer. 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 2019
MPR Publicity flyer
MPR By-Laws - MPR Awards Policy
Region 6 By-Laws - Region 6 Inboard By-Laws

2018 Winners and Awards
November 19, 2018

Congratulations to our 2018 Winners!

Overall High Points – Chris Ritz
1 Litre – Chris Ritz
2.5 Stock – Keith Fickert
2.5 Mod – Kevin Kreitzer
5 Litre – Bobby King
National Modified – Tom Newman
Grand National Hydroplane
– Steve Kuhr
Grand Prix – Mario Maraldo

Prop Rider of the Year – Mario Maraldo
Rookie of the Year – Dillon Goodell
Hard Luck Award – Greg Kreitzer
Jim and Elsie Edwards Memorial Vintage Team Award – Royce and Kathy Richards
Doc Terry Award – Mike Terry
Grant Ward Unsung Hero Award – Tom English

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 !