One of the most traditional forms of motorcycle competition in the United States, dirt-track racing grew from the age when riders would compete on county fair horse tracks groomed to deliver a hard-packed surface.
Riders compete in four different types of events: oval short-track, half-mile and mile tracks, and TT courses, which feature at least one right turn and a jump. Dirt-track bikes include both traditional dirt-trackers (sometimes called "framers" because of their custom-built frames) and DTX bikes, which are converted motocross or off-road motorcycles. Due to the few modifications required off the showroom -- generally, wheels, tires and suspension -- DTX bikes are the most popular models in the discipline today.
Each summer, the AMA sanctions the Dirt Track Grand Championship and presents the AMA Dirt Track Horizon Award to the most promising rider on the verge of a professional racing career.
Since 1975, the AMA Dirt Track Grand Championship has pitted top amateur dirt trackers against each other in friendly competition. As the premier amateur dirt-track event in the United States, the AMA Dirt Track Grand Championship is unmatched in terms of history and prestige.
Riders at the AMA Dirt Track Grand Championship traditionally compete in all types of dirt-track races, with the overall class winners crowned national champions.
As with most AMA amateur national championships, and in recognition of the range of participants in amateur competition, the event includes multiple classes to provide ample opportunity for amateur racers to compete. Both age-, displacement- and bike-configuration classes are featured.
In addition to the AMA Dirt Track Grand Championship, the AMA sanctions numerous local dirt track events all over the country. Riders converge on these tracks, many of which have been operating for decades, to battle for bragging rights, trophies and pro-am purses.
Dirt Track Rules
AMA-sanctioned events run according to the rules developed and written by AMA Congress, the rules-making body of the AMA composed of AMA organizers.
The AMA Amateur Competition Rulebook is for the exclusive use of AMA-chartered clubs and promoters running AMA-sanctioned events.
The rulebook applies to all AMA-sanctioned competition. Supplemental regulations are additions to the rulebook based on the needs of a specific series. All supplemental regulations are approved by the AMA.
Dirt track rules are included in the AMA Amateur Competition Rulebook.
AMA Amateur Competition Rulebook