This weekend is the US Open of Mountain Biking at Mountain Creek's Diablo Freeride Park. If you never been here before, its a place to show case the greatest riders from local freeriders to national & international pros. This park has been the host of the US Open for many years and will be for many more years to come. You shouldn't confuse this US Open with the US Open of Tennis, which is boring in contrast. Every single rider will be going all out risking life and limbs to score big for their piece of $50,000 in the amateur and pro class combined.