The last US Open of Supercross was held in October of 2009, and since that event, there has been a void left in the MX/SX off-season waiting to be filled. Rumors have been circulating almost since the checkered flag flew on the final night at the final US Open, but nothing had come to fruition until recently. At the Las Vegas Supercross finale at Sam Boyd’s Silver Bowl in Las Vegas, Nevada, in early May, Feld Motorsports and Monster Energy announced a new event to take place in October at Sam Boyd entitled the “Monster Energy Cup.”