Graves Motorsports racer Ben Bostrom won the 2008 AMA Supersport championship with a gutsy second-place finish in the series’ final round at Laguna Seca in Monterey, Calif. on Sunday, Sept. 28. The championship is Bostrom’s third career title (to go with his Supermoto and Superbike honors) and the first in the Supersport class for Yamaha’s YZF-R6 since 2006. Teammate Josh Herrin made a strong run to the podium to finish third and wind up the season solidly in fifth.