Red Bull KTM's Ryan Dungey won his fourth race of the season in Las Vegas. Image: Simon Cudby.

Red Bull KTM’s Ryan Dungey won his fourth Monster Energy AMA Supercross, an FIM World Championship, race tonight in front of a sold-out crowd of 39,509 at Sam Boyd Stadium in Las Vegas.

After leading wire-to-wire, GEICO Honda’s Justin Barcia won the final stop of the Eastern Regional Supercross Lites Class Championship.

Barcia’s teammate Eli Tomac also led all 15 laps of the Western Regional Supercross Lites Class main event, winning his fifth race of the season.

MotoConcepts’ Mike Alessi captured the holeshot award to start the Supercross Class main event. Dungey didn’t wait long to make his move on Alessi to take the lead on lap one.

Yoshimura Suzuki’s Brett Metcalfe moved into second place on lap two, passing Alessi, and on the following lap, Monster Energy Kawasaki’s Jake Weimer found his way into third place.

Weimer advanced into second place on Lap 6, while JGRMX/Toyota/Yamaha Davi Millsaps secured third place and set his sights on Weimer. Weimer and Millsaps mixed it up on lap seven, trading places for second place with Weimer holding the position.

Millsaps finally made the pass on Weimer on lap 10 and rode to a second place finish. Dungey won with an eight-second margin of victory and Team Honda Muscle Milk’s Justin Brayton finished third.

Millsaps finished second in the season point standings and Dungey finished third.

“After the heat race, we made a change to the bike that really helped out in the main event,” said Dungey. “The track was hard-packed tonight and a little tough.

“I am really happy that I could get this win for the KTM team.”

Barcia capped off his championship-winning Eastern Regional Supercross Lites Class season by winning the holeshot before leading all 15 laps en route to his sixth victory of the season. Barcia clinched the championship earlier this year at the New Orleans stop.

Behind Barcia, Red Bull KTM’s Ken Roczen assumed the second-place position with Monster Energy/Pro Circuit/Kawasaki’s Blake Baggett in tow, where they would finish.

Tomac opened the Western Regional Supercross Lites Class main event by placing his GEICO Honda across the holeshot line with Rockstar Energy Racing Suzuki’s Martin Davalos and his teammate Jason Anderson following in second and third, respectively.

On lap three, Anderson moved into third place, passing Davalos, but moments later made a mistake that allowed Davalos to take back second place and Monster Energy/Pro Circuit/Kawasaki’s Dean Wilson to move into third.

Wilson passed Davalos on lap five to take over the number-two position. GIECO Honda’s Wil Hahn moved around Davalos on lap 11. Wilson finished second and Hahn finished third.

“This shows that GEICO Honda has done a great job this year with us winning both Supercross Lites Class titles and Wil [Hahn] finishing third tonight,” said Tomac.

The dominant performance by the GEICO Honda team set the stage for the 10 lap Dave Coombs Sr. East/West Shootout. Once again, Barcia won the Nuclear Cowboyz Holeshot Award, and he was trailed by Davalos and Tomac.

On lap three Davalos took advantage of a mistake by Barcia to move into the lead. Two laps later, both Barcia and Tomac moved around Davalos.

Barcia was able to hold off the hard charging Tomac for the win. Tomac finished second and Davalos was third.

Team Honda Muscle Milk’s Justin Brayton won the second annual Brett Michaels Rock Hard-Ride Hard Award and received a $10,000 bonus.

2012 Monster Energy Supercross, an FIM World Championship
Round 17 – Las Vegas, NV

Supercross Class Results:
1. Ryan Dungey, Belle Plaine, Minn., KTM
2. Davi Millsaps, Murrieta, Calif., Yamaha
3. Justin Brayton, Fort Dodge, Iowa, Honda
4. Jake Weimer, Rupert, Idaho, Kawasaki
5. Joshua Grant, Corona, Calif., Kawasaki
6. Nico Izzi, Menifee, Calif., Yamaha
7. Mike Alessi, Hilliard, Fla., Suzuki
8. Weston Peick, Wildomar, Calif., Yamaha
9. Andrew Short, Smithville, Texas, Honda
10. Nick Wey, DeWitt, Mich., Kawasaki

Supercross Class Season Standings:
1. Ryan Villopoto, Poulsbo, Wash., Kawasaki, 323
2. Davi Millsaps, Murrieta, Calif., Yamaha, 266
3. Ryan Dungey, Belle Plaine, Minn., KTM, 257
4. Justin Brayton, Fort Dodge, Iowa, Honda, 257
5. Jake Weimer, Rupert, Idaho, Kawasaki, 229
6. Mike Alessi, Hilliard, Fla., Suzuki, 206
7. James Stewart, Haines City, Fla., Yamaha, 178
8. Brett Metcalfe, Lake Elsinore, Calif., Suzuki, 177
9. Broc Tickle, Holly, Mich., Kawasaki, 171
10. Kevin Windham, Centreville, Miss., Honda, 166

Western Regional Supercross Lites Class Results:
1. Eli Tomac, Cortez, Colo., Honda
2. Dean Wilson, Menifee, Calif., Kawasaki
3. Wil Hahn, Decatur, Texas, Honda
4. Martin Davalos, Cairo, Georgia, Suzuki
5. Jason Anderson, Edgewood, N.M., Suzuki
6. Marvin Musquin, Murrieta, Calif., KTM
7. Matt Moss, Murrieta, Calif., KTM
8. Ryan Sipes, Ekron, Ky., Yamaha
9. Scott Champion, Sun City, Calif., Honda
10. Landen Powell, South Jordan, UT, Honda

Western Regional Supercross Lites Class Season Standings:
1. Eli Tomac, Cortez, Colo., Honda, 184
2. Dean Wilson, Menifee, Calif., Kawasaki, 154
3. Marvin Musquin, Murrieta, Calif., KTM, 142
4. Cole Seely, Murrieta, Calif., Honda, 119
5. Jason Anderson, Edgewood, N.M., Suzuki, 111
6. Matt Moss, Murrieta, Calif., KTM, 106
7. Ryan Sipes, Ekron, Ky., Yamaha, 96
8. Martin Davalos, Cairo, Georgia, Suzuki, 89
9. Billy Laninovich, Riverside, Calif., Honda, 85
10. Nico Izzi, Menifee, Calif., Yamaha, 78

Eastern Regional Supercross Lites Class Results:
1. Justin Barcia, Ochlocknee, Ga., Honda
2. Ken Roczen, Murrieta, Calif., KTM
3. Blake Baggett, Grand Terrace, Calif., Kawasaki
4. Malcolm Stewart, Haines City, Fla., KTM
5. Blake Wharton, Pilot Point, Texas, Suzuki
6. Kyle Cunningham, Aledo, Texas, Yamaha
7. Hunter Hewitt, Corona, Calif., Suzuki
8. Jake Canada, Sun City, Calif., Honda
9. Matthew Lemoine, Collinsville, Texas, Kawasaki
10. Kyle Peters, Greensboro, NC, Yamaha

Eastern Regional Supercross Lites Class Season Standings:
1. Justin Barcia, Ochlocknee, Ga., Honda – 210
2. Ken Roczen, Murrieta, Calif., KTM – 165
3. Blake Wharton, Pilot Point, Texas, Suzuki – 158
4. Blake Baggett, Grand Terrace, Calif., Kawasaki – 148
5. Darryn Durham, Butler, Pa., Kawasaki – 143
6. Jake Canada, Sun City, Calif., Honda – 131
7. Justin Bogle, Cushing, Okla., Honda – 117
8. Kyle Cunningham, Aledo, Texas, Yamaha – 85
9. Matthew Lemoine, Collinsville, Texas, Kawasaki – 78
10. Alex Martin, Millville, Minn., Honda – 77

Dave Coombs Sr. East/West Shootout:
1. Justin Barcia, Ochlocknee, Ga., Honda
2. Eli Tomac, Cortez, Colo., Honda
3. Martin Davalos, Cairo, Georgia, Suzuki
4. Ken Roczen, Murrieta, Calif., KTM
5. Marvin Musquin, Murrieta, Calif., KTM
6. Wil Hahn, Decatur, Texas, Honda
7. Ryan Sipes, Ekron, Ky., Yamaha
8. Malcolm Stewart, Haines City, Fla., KTM
9. Blake Wharton, Pilot Point, Texas, Suzuki
10. Matt Moss, Murrieta, Calif., KTM