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.
Football: Colby aiming to launch pan-disability team
It would become third of its kind on the Isle of Man
Golf: Dawson kicks off latest Ladies European Tour campaign
Island player has first full card on tour for 2026
Rugby: Rodd in England Six Nations side to face Italy
Former Island player gets fourth consecutive call-up
Athletics: Ollie Lockley sets personal best at Battersea
Manxman takes fourth spot in tightly-contested 5km race
2025 MGP winner Canny to make TT debut
Donegal rider to join Scott Racing for maiden appearance