Ken Roczen won the Indiana National on Saturday for his fifth 450 Class victory of the season, and Jeremy Martin wrapped up the 250 Class season title.
Roczen, from Germany, won the first moto and finished second in the second. He stretched his season lead to 20 over Red Bull KTM teammate Ryan Dungey heading into the finale in Utah.
Honda's Trey Canard was second overall, finishing third in the first moto and winning the second. Dungey was third. He was second in the first moto and ninth in the second.
Red Bull KTM's Marvin Musquin won the 250 Class, finishing third in the first moto and winning the second. Martin was eighth overall. The Yamaha rider secured the season title with a second-place finish in the first moto and was 15th in the second.
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