Ken Roczen is the defending winner in Glendale, Arizona, but last year's race was a standard race. How will he and the field fare in a Triple Crown format?

Glendale had a chip on its shoulder for decades ... who took a series of big swings to create what they hoped would be the ...

TV coverage of Supercross Round 4 at State Farm Stadium in Glendale, Arizona, will begin live Saturday, February 1, at 8:00 p.m. ET on Peacock and the NBC Sports App with an encore at 2 p.m ...