The Michigan Hydroplane Racing Association (MHRA) formed in 1984 from three longstanding Michigan stock outboard racing clubs—the Bay City Outboard Club (BCOC), Belle Isle Outboard Club (BIOC), and West Michigan Boat Racing Association (WMBRA). When these three clubs merged, they combined over 100 years of racing and officiating experience. The MHRA has built on this experience and continues to put on exciting "kneel-down" hydroplane and runabout races in Constantine, Grass Lake, and Big Rapids, Michigan.

The MHRA is a non-profit organization that conducts Stock, J-Class, and Pro outboard races throughout the state of Michigan under the governing body of the American Power Boat Association (APBA). Club members not only race, they perform pre-race and race day organization and officiate the events. The MHRA prides itself in putting on some of the largest and best Stock Outboard races in the country.

If you are interested in finding out more about Stock Outboard racing or the MHRA, go to our MHRA Regional Contacts page for information about contacting a racer in your area!