AMA Supersport is the 600cc class for AMA

American Motorcyclist Association

The American Motorcyclist Association is an American not-for-profit organization of more than 300,000 motorcyclists that organizes numerous motorcycling activities and campaigns for motorcyclists' legal rights...

 motorcycle

Motorcycle

A motorcycle is a single-track, two-wheeled motor vehicle. Motorcycles vary considerably depending on the task for which they are designed, such as long distance travel, navigating congested urban traffic, cruising, sport and racing, or off-road conditions.Motorcycles are one of the most...

 racing, held from 1988. The current national champion is Graves Motorsports' Ben Bostrom

Ben Bostrom

Benjamin "Ben" Bostrom is an American motorcycle racer.The son of Dave and nephew of Paul Bostrom, both successful dirt-track racers, Bostrom began his career in the same fashion by winning the AMA National 600 Dirt Track Championship in 1993...

 who succeeded the younger brother of Nicky and Tommy, Roger Lee Hayden

Roger Lee Hayden

Roger Lee Hayden is an American professional motorcycle racer, the younger brother of both 2006 MotoGP World Champion Nicky Hayden and AMA Superbike Championship rider Tommy Hayden.-Career:...

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The American Motorcycle Association uses member clubs, partners, and promoters to put together more competitive and recreational motorcycling events than anyone else in the country. Daytona Motorsports Group owns and manages the AMA Supersport Championship. In the AMA Supersport Championship, motorcyclists reach speeds over 160 miles per hour over a 40 mile sprint race.