Abstract: A form of competitive motorcycle racing termed "Enduro racing" comprises a series of race segments. The object of the race is to traverse each race segment at speeds which are as close as possible to the target speeds for the race segment. Along each race segment may be a check point or a series of check points where the elapsed time required by a contestant is measured, with total score for a race being determined at least in part by the success of the contestant in traversing a previously undisclosed portion of each race segment in a target time corresponding to the time required to traverse that portion of the race segment in the target speed. Thus, it is the contestant's challenge to not only maneuver his motorcycle with considerable skill but to maintain a constant speed, anticipate potential checkpoints along each race segment, and where possible, complete each race segment in the correct amount of time.