The 2010 US Open is now on at Diablo Freeride Park, New York. There's $55,000 big ones up for grabs which might have something to do with the fact that the majority of the fastest World Cup racers in the world are there, such as Sam Hill, Brendan Fairclough, Gee Atherton, Mick Hannah, Stevie Smith, Brian Lopes and Marc Beaumont.

For more details on the bike park, click Diablo.

We've got the day one practice video coming shortly, but until then here's a head cam edit of the DH and GS courses courtesy of banshee. US Open DH and GS Course Previews by Team Geronimo >>