Image: Simon Cudby.

Team Yoshimura Suzuki’s James Stewart won his second straight Monster Energy AMA Supercross, an FIM World Championship, race with a dominant performance in the 450SX Class for the 47th win of his career.

Red Bull KTM’s Ryan Dungey raced to the holeshot to start the 20-lap 450SX Class main event, edging out Stewart and Monster Energy Kawasaki’s Ryan Villopoto.

By the conclusion of the opening lap, Team Honda Muscle Milk’s Justin Barcia had moved into third, with Toyota/Yamaha/N-Fab/JGRMX’s Justin Brayton in fourth and Red Bull KTM’s Ken Roczen in fifth. Villopoto crossed the line in sixth.

Dungey led the opening three laps before Stewart made the winning pass and pulled away steadily for the remainder of the final. Dungey was never challenged for second, but the battle for the final spot on the podium waged on between Barcia, Brayton, Roczen, and Villopoto.

Both Barcia and Brayton took turns occupying the position while Villopoto challenged for the spot in the late stages of the race. Ultimately, Barcia held on to third to secure his first podium result of the season.

Stewart moved to within one victory of tying five-time Monster Energy Supercross champion Ricky Carmichael for second on the all-time 450SX Class wins list. It was his first win inside AT&T Stadium, but his third in North Texas following wins in 2005 and 2007 inside the old Cowboys Stadium in Irving, Texas.

“I’m so happy,” exclaimed Stewart. “I thought we needed to be better for the main event and we were. The track was really difficult and I knew I had to get myself to a certain point in order to make a pass and control the race. The championship doesn’t matter right now. We just need to keep riding like we are. If we do that, then we’ll be good.”

Villopoto finished fourth to maintain his lead in the championship standings, which now sits at 12 points over Roczen, who finished sixth. Stewart moved into third place, 14 points out of the lead.

Australia’s Chad Reed, who suffered an injury on the final lap of competition one week ago in San Diego, attempted to practice on Saturday despite a broken scapula, collarbone, and T1 vertebrae, but ultimately pulled out of competition. He fell from third to sixth in the championship.

In the opening race of the Eastern Regional 250SX Class Championship, Monster Energy/Pro Circuit/Kawasaki’s Adam Cianciarulo captured his first career victory in his Monster Energy Supercross debut.

Cianciarulo began his first career main event by racing to the holeshot, bringing his Monster Energy/Pro Circuit/Kawasaki teammates Martin Davalos and Blake Baggett with him.

Davalos, who was the fastest rider in practice, made a pass for the lead on the opening lap but crashed on lap three, allowing Cianciarulo to reclaim the top spot and Baggett to take over second.

Yamalube/Star Racing Yamaha’s Anthony Rodriguez took over third in his first career professional start, but crashed out of the race on lap six, handing the position to TiLUBE/Storm Lake Honda’s Gavin Faith.

Out front, Cianciarulo and Baggett opened a significant advantage over the rest of the field before Baggett made a pass on Cianciarulo for the lead on lap seven. The rookie rider responded quickly and retook the lead in the next turn. Faith then crashed out of the race a lap later, which allowed Davalos to move back into podium position.

Once back out front, Cianciarulo extended his advantage to become the first rider since Trey Canard in 2008 to win in his first career supercross start. Baggett finished second while Davalos rebounded from a pair of crashes to climb his way from sixth to third and secure a podium sweep for Monster Energy/Pro Circuit/Kawasaki.

“I couldn’t be more pumped,” said Cianciarulo, who became the 93rd different 250SX Class winner in Monster Energy Supercross history. “This is for everyone who has stuck behind me through all the good times and bad.

“It’s taken a lot of good days and a lot of bad days to get to this point. I cannot believe it, all these fans cheering for me and giving me the support. I just can’t believe it. We did it.”

Of the Aussies, Jackson Richardson circulated to 17th in the main event on his privateer Honda, while countryman Taylor Potter exited the night program by virtue of a 13th in the LCQ.

Monster Energy Supercross visits Atlanta’s Georgia Dome next Saturday, 22 February, for the eighth race of the 2014 season.

2014 Monster Energy Supercross, an FIM World Championship
Round seven – Arlington, Texas

450SX main event results:
1. James Stewart
2. Ryan Dungey
3. Justin Barcia
4. Ryan Villopoto
5. Justin Brayton
6. Ken Roczen
7. Broc Tickle
8. Wil Hahn
9. Josh Hill
10. Andrew Short

450SX championship standings (after seven of 17 rounds):
1. Ryan Villopoto 144
2. Ken Roczen 132
3. James Stewart 130
4. Ryan Dungey 116
5. Justin Brayton 114
6. Chad Reed 111
7. Justin Barcia 109
8. Andrew Short 83
9. Wil Hahn 65
10. Broc Tickle 63

East Coast 250SX main event results:
1. Adam Cianciarulo
2. Blake Baggett
3. Martin Davalos
4. Vince Friese
5. Justin Bogle
6. Cole Thompson
7. Blake Wharton
8. Kyle Cunningham
9. Alex Martin
10. Mitchell Oldenburg

East Coast 250SX championship standings (after one of nine rounds):
1. Adam Cianciarulo 25
2. Blake Baggett 22
3. Martin Davalos 20
4. Vince Friese 18
5. Justin Bogle 16
6. Cole Thompson 15
7. Blake Wharton 14
8. Kyle Cunningham 13
9. Alex Martin 12
10. Mitchell Oldenburg 11

Click here for detailed results