The AMA Supercross series comes to Chase Field on Saturday for the second stop on its 2010 tour.
Practice and qualifying begins at 12:30 p.m., the main event scheduled for 7 p.m.
Defending champion James Stewart is off to a fast start after winning last week's season opener in Anaheim.
“I'm a lot better off than last year by getting this win,” said Stewart, refering his 19th-place finish at Anaheim a year ago. “It's a great way to start off the season."
Stewart has won three straight times in Phoenix and can tie five-time AMA Supercross champion Ricky Carmichael for most wins in Phoenix if he repeats again this weekend.
Stewart also ranks third on the all-time AMA Supercross class win list with 37, and can tie Chad Reed for second with a win Saturday night.
In the Supercross Lites class, Jake Weimer will be in Phoenix after winning last week in Anaheim -- his fifth career Supercross Lites victory.
Tickets range from $10 to $65 and are available at the Chase Field box office and at Ticketmaster locations.