Villopoto has won the San Francisco Supercross leading home Josh Hill, Davi Millsaps, Ryan Dungey and Andrew Short. In the Lites class it was Trey Canard who go the win ahead of Jake Weimer, Broc Tickles, Wil Hahn and Cole Seely.

The big action of the night was when series leader and two time main event winner Ryan Dungey crashed while holding a big lead in the Supercross main event. He went down hard and struggled to the finish with a broken clutch.

 "It was tough out there,"Villopoto told. "The track was slippery and really difficult to ride. Its a long season and I just need to keep my head down and keep scoring points, anything can happen as we have seen already."

Supercross Main event 1. Ryan Villopoto, 2. Josh Hill, 3. Davi Millsaps, 4. Ryan Dungey, 5. Andrew Short, 6. Justin Brayton, 7. Ivan Tedesco, 8. Nick Wey, 9. Thomas Hahn, 10. Michael Byrne

Supercross points 1. Ryan Dungey 90pts, 2. Josh Hill 79pts, 3. Ryan Villopoto 77pts, 4. Andrew Short 68pts, 5. Kevin Windham 61pts, 6. David Millsaps 57pts, 7. Ivan Tedesco 57pts, 8. James Stewart 51pts, 10. Tommy Hahn 42pts

Lites Main event 1. Trey Canard, 2. Jake Weimer, 3. Broc Tickle, 4. Wil Hahn, 5. Cole Seely, 6. Travis Baker, 7. Josh Hansen, 8. Max Anstie, 9. Jeff Alessi, 10. Phillip Nicoletti

Lite points 1. Jake Weimer 97pts, 2. Trey Canard 81pts, 3. Wil Hahn 74pts, 4. Broc Tickle 62pts, 5. Blake Wharton 59pts, 6. Cole Seely 54pts, 7. Josh Hansen 46pts, 8. Max Anstie 45pts, 9. Ryan Morais 42pts, 10. Jeff Alessi 40pts