The AMA Superbike Championship will be back in action for the fourth time in 2008 and the Infineon Raceway in California will host the North American premier series.

Ben Spies ended teammate Mat Mladin's perfect season start by claiming the pole and a pair of wins at Auto Club Speedway's doubleheader. Spies' victory over Matt Mladin in Sunday's race was a highlight of the 23-year-old Texan's rapidly developing career.

The two-time reigning AMA Superbike champ's big weekend tightened up the points chase as well, although Mladin is still firmly in control, leading his rival by 20 points, 178 vs. 158, heading into this week-end race.

Rockstar Makita Yoshimura Suzuki now boasts a remarkable 32-race win streak in the AMA Superbike class. Needless to say that Spies and Mladin are the once again the pre-race favourites. Spies swept the doubleheader at the circuit in '06 while Mladin has taken eight wins at the track, including doubleheader sweeps in '03, '05, and '07.