The $10,000 pro purse will certainly attract a large list of top riders to challenge Brown and all X Games Enduro X riders have been added to the list of pre-qualified riders. The pre-qualified riders earn a free entry into the Sunday Knockout rounds. The 50-60 riders will first complete a single lap on the “short” course against the clock. They will then follow that up with a lap around the long course (approximately one hour lap time); again against the clock and only the top 25 riders will move on to Knockout round two. Five groups of five riders will then compete head to head on the long course, with a few more challenging sections added, and only the top three from each group will move on to the fifteen rider main event. The fifteen riders in the main will compete in a multi lap race in the “Stadium” section of the Trials Training Center facility. Racers and fans can expect some of the most extreme motorcycle racing conditions ever witnessed.