After wins in Denver and Oklahoma, Manxman David Knight could win a bonus of 50,000 US dollars if he wins the final round of the 2007 American Endurocross Series.
The prize is only paid if a rider completes a triple crown of victories.
He has already enjoyed a superb season in the United States of America by clinching the Grand National Cross-Country title at his first attempt.
FC Isle of Man tie at Atherton LR rescheduled for second time
Meeting last week was called off due to Storm Bram
Rugby: Vagabonds appoint new club president
Joanne McCabe also described as a 'driving force' behind women's team
Hockey: Eighth place for Dunn and England at Junior Women's World Cup
England narrowly beaten by Australia in final match in Chile
Football: Peel thrash Corinthians in title clash
Westerners move within four points of leaders with two games in hand
Rugby: Douglas lose for second week running
Vagabonds Ladies win at home