Watch 2016 Arlington Monster Energy Supercross Live on February 20, 2016 at AT&T Stadium, Arlington, TX. This thrilling motor race will begin at 8:00 p.m. ET. Supercross Arlington Race is one of the biggest races amongst the all Supercross races. 2016 Arlington Monster Energy Supercross is back in 2016 for another thrilling racing season. Thousands of racing fans watch Supercross Arlington Race and making this the biggest motorsports event.