PICKERINGTON, Ohio–The American Motorcyclist Association (AMA) announces with deep regret the death of Supermoto racer Anthony Hart of Henderson, Nevada following a crash today [August 9] during a practice session for the AMA XTRM Supermoto Championship series event at Stafford Motor Speedway in Stafford Springs, Connecticut. Hart was 21. AMA Pro Racing offers its most sincere condolences and heartfelt sympathies to the Hart family and friends during this difficult time. About American Motorcyclist Association (AMA) Racing AMA Racing is the leading sanctioning body for motorcycle sport in the United States. AMA Pro Racing series include the Monster Energy(R) AMA Supercross Series, an FIM World Championship, the AMA Toyota Motocross Championship presented by FMF, the AMA Superbike Championship presented by Parts Unlimited, the AMA Flat Track Championship, the AMA Supermoto Championship and the AMA Pro ATV Championship. In amateur and pro-am competition, AMA Racing sanctions over 4000 events in 24 different disciplines. For more information, visit www.americanmotorcyclist.com/racing.