Rockstar Makita Suzuki’s Ryan Dungey won his fifth AMA Supercross class main event of the 2010 Monster Energy AMA Supercross, an FIM World Championship, season at the Edward Jones Dome in front of 59,882 fans.

Geico Powersports Honda’s Justin Barcia won the final race of the Eastern Regional AMA Supercross Lites class championship.

TiLube Babbits Kawasaki’s Nick Wey won the Spike Holeshot Award to start the AMA Supercross class main event. Dungey and Red Bull Honda Racing’s Davi Millsaps made their way through turn one in second and third respectively.

Dungey moved into the lead on the first lap to secure the lead as Monster Energy Kawasaki’s Ryan Villopoto secured second place on lap two and started to chase down Dungey.

On lap nine, while trying to pass Dungey, Villopoto caused the two of them to crash. When they remounted Villopoto moved into the lead and Dungey re-started in third.

After recapturing second place, Dungey set chase on Villopoto, but on lap 11 Villopoto suffered a horrific crash and was unable to return to the race. Dungey held on for the win, Geico Powersports Honda’s Kevin Windham finished second and Red Bull Honda Racing’s Andrew Short finished third.

“It got really hectic out there tonight,” said Dungey. “I had a great start so that was a huge help. We worked really hard this week to come out here in St. Louis prepared. It’s unfortunate that Ryan [Villopoto] crashed. I hope he is ok.”

Barcia rocketed his way to the Spike Holeshot Award with Monster Energy Pro Circuit Kawasaki’s Dean Wilson and Geico PowersportsHonda’s Brett Metcalfe following in second and third respectively.

Wilson passed Metcalfe early to assume second place. On lap three Wilson crashed but lost very little ground. After working his way back from the crash on lap three, Wilson charged past Metcalfe on lap nine.

The win for Barcia marked the second of his career and moved him into second place in the Eastern Regional AMA Supercross Lites class championship. Wilson held on for second place, which is the best finish of his career.

“I pulled it together tonight,” said Barcia. “I learned that the holeshot makes the race go a lot easier. Everyone on the team did a great job with my bike, and I am pumped to pick up this win.”

St. Louis AMA Supercross Class Results
1. Ryan Dungey, Belle Plaine, Minn., Suzuki
2. Kevin Windham, Centerville, Miss., Honda
3. Andrew Short, Smithville, Texas, Honda
4. Nick Wey, Murrieta, Calif., Kawasaki
5. Chad Reed, Tampa, Fla., Kawasaki
6. Justin Brayton, Murrieta, Calif., Yamaha
7. Michael Byrne, Park City, Utah, Yamaha
8. Kyle Chisholm, Valrico, Fla., Yamaha
9. Davi Millsaps, Murrieta, Calif., Honda
10. Tommy Hahn, Alvord, Texas, Suzuki

AMA Supercross Class Season Standings
1. Ryan Dungey, Belle Plaine, Minn., Suzuki, 302
2. Ryan Villopoto, Poulsbo, Wash., Kawasaki, 266
3. Josh Hill, Carlsbad, Calif., Yamaha, 225
4. Kevin Windham, Centerville, Miss., Honda, 223
5. Davi Millsaps, Murrieta, Calif., Honda, 215
6. Justin Brayton, Murrieta, Calif., Yamaha, 191
7. Ivan Tedesco, Murrieta, Calif., Yamaha, 183
8. Nick Wey, Murrieta, Calif., Kawasaki, 159
9. Tommy Hahn, Alvord, Texas, Suzuki, 139
10. Kyle Chisholm, Valrico, Fla., Yamaha, 136

St. Louis Eastern Regional AMA Supercross Lites Class Results
1. Justin Barcia, Ochlocknee, Ga., Honda
2. Dean Wilson, San Jacinto, Calif., Kawasaki
3. Brett Metcalfe, Lake Elsinore, Calif., Honda
4. Martin Davalos, Cairo, Ga., Yamaha
5. Blake Baggett, Grand Terrace, Calif., Suzuki
6. Kyle Cunningham, Fort Worth, Texas, Honda
7. Michael Willard, Newark, Ohio, Honda
8. Mathew Lemoine, Collinsville, Texas, Suzuki
9. Steve Clarke, Cairo, Ga., Suzuki
10. Kyle Keylon, Brooksville, Fla., Suzuki

Eastern Regional AMA Supercross Lites Class Season Standings
1. Christophe Pourcel, Groveland, Fla., Kawasaki, 160
2. Justin Barcia, Ochlocknee, Ga., Honda, 147
3. Brett Metcalfe, Lake Elsinore, Calif., Honda, 133
4. Austin Stroupe, Lincolnton, N.C., Suzuki, 126
5. Blake Baggett, Grand Terrace, Calif., Suzuki, 118
6. Dean Wilson, San Jacinto, Calif., Kawasaki, 105
7. Ryan Sipes, Vine Grove, Ky., Yamaha, 93
8. Kyle Cunningham, Fort Worth, Texas, Honda, 84
9. Martin Davalos, Cairo, Ga., Yamaha, 83
10. Michael Willard, Newark, Ohio, Honda, 66