The successful result of the pass has made it one of the most memorable moments in series history, and could be the defining moment in the outcome of the championship.

After 11 rounds of competition and a summer full of the best motocross racing on the planet, the 2011 Lucas Oil AMA Pro Motocross Championship will come to a dramatic conclusion this Saturday, September 10, as American Motocross will crown a pair of champions in its return to Southern California. Pala Raceway, located in Northern San Diego County, will host the second annual Traxxas Pala National, with a three-class showcase of the world's fastest motocross athletes.

Throughout the season, the championship-leading 450 Class duo of Monster Energy Kawasaki's Ryan Villopoto and Rockstar/Makita Suzuki's Ryan Dungey, have engaged in many heated battles in their quest for a national title. Perhaps none of which were more exciting than what took place last weekend at the Steel City Motocross National. The opening moto from Delmont, Pa., featured a tremendous showdown between the pair of Ryan's, with Dungey leading the way from the start, and Villopoto searching for an opportunity to get by throughout the race. The distance between the two riders see-sawed through the entire moto, until a last-ditch effort by Villopoto put him alongside Dungey coming out of the final corner, and ultimately signified the biggest moto win of the year for the points leader. The successful result of the pass has made it one of the most memorable moments in series history, and could be the defining moment in the outcome of the championship.

Following Villopoto's moto sweep, and subsequent third overall win of the 2011 season, 14 points now separate he and Dungey heading into Pala Raceway. With the double-digit advantage in his favor, Villopoto has put the pressure on Dungey, who will look to remain undefeated at the newest facility in American Motocross, following a dominant 1-1 effort one year ago. Should Dungey accomplish that task, and shift the momentum back into his favor, Villopoto would need a minimum finish of fourth in each moto to secure his first 450 Class title.

As the newest venue of the Lucas Oil AMA Pro Motocross Championship, Pala Raceway has become Southern California's premier motocross destination. With its sprawling layout and unique blend of speed and big air, the track is quickly gaining popularity throughout the industry. Saturday's action will bring a full day of nationally-televised live coverage on both FUEL TV and SPEED, beginning at 4 p.m. EST.