Tony StewartTony Stewart claimed his first NASCAR Cup win of the season, beating Roush Fenway's Carl Edwards to victory at Atlanta Motor Speedway. The Stewart Haas racer secured his place in the Chase for the Cup in the process and added 10 bonus points to his total for the championship playoff, which starts in two week's time.

The two-time Cup champion swapped the lead many times in the early going with Joe Gibbs' Denny Hamlin, who looked to be his closest challenger before being forced to retire with an engine failure. After that and despite some poor restarts where he would surrender the lead, Stewart was able to get back up front and make the final pass for victory over Edwards with 25 laps to remaining during the penultimate restart of the event.

In clean air Stewart was untouchable, taking a perfect score along with his 38th career win after leading 176 of the race's 325 laps.

"We had to be the fastest car all night at the beginning of the run," said Stewart. "If we got track position and we got anywhere close to clean air, we were able to just take off.

"Once we get two or three laps in, I didn't have to run as hard as the guys behind me. I was able to take care of the tires and after five more laps drive away from those guys and open up a huge gap."

Edwards became a factor in the second half of the race but didn't have anything for Stewart once he lost the lead. However, his strong finish allowed him to also get locked into the championship Chase, as the top 10 in the standings have already secured their place in the title fight.

"Tony just had such a fast car there at the end, but we're back," said Edwards. "We're doing it. We're scoring more points than anybody. We're heading into the Chase.

"I'm excited about going to Richmond. I'm real excited about starting the Chase. We had something that could win the race tonight and that's a blast."

Johnson was third ahead of Richard Childress' Jeff Burton, while Kyle Busch bounced back from a speeding penalty and an unscheduled stop for a loose tire to finish fifth.

Penske's Kurt Busch also recovered from being a lap down to finish sixth ahead of RCR's Clint Bowyer, who remains 12th in the standings and now with an even healthier gap of 117 points to 13th place, with just next weekend's race at Richmond left before the cut.

Ryan Newman finished eighth after surviving contact with Kasey Kahne in the closing laps. The Richard Petty Motorsports driver hit the wall after Newman got into the back of him. Once his team carried out repairs in the pits, he rejoined the race and retaliated against the Stewart Haas driver, who just managed to avoid crashing and now ranks 13th in the points thanks to his good finish.

Juan Pablo Montoya took a solid ninth behind him, while Australian Marcos Ambrose rounded out the top 10 with a strong final stint.

Roush Fenway's Greg Biffle was involved in an incident with Newman and his car was heavily damaged in the wreck, but he still rejoined the race later on and was credited with a 36th-place finish – enough for him to remain 11th in the standings.

Points leader Kevin Harvick was only 33rd after his left front blew up right after he flat-spotted the tire trying to dive into the pits. The damage caused him to lose any chance of victory and, in the end, forced him to retire for the first time this season.

Pos  Driver              Car        Laps

 1.  Tony Stewart           Chevrolet  325

 2.  Carl Edwards           Ford       325

 3.  Jimmie Johnson       Chevrolet  325

 4.  Jeff Burton               Chevrolet  325

 5.  Kyle Busch              Toyota     325

 6.  Kurt Busch               Dodge      325

 7.  Clint Bowyer             Chevrolet  325

 8.  Ryan Newman          Chevrolet  325

 9.  Juan Montoya           Chevrolet  325

10.  Marcos Ambrose      Toyota     325

11.  Matt Kenseth        Ford       325

12.  Martin Truex Jr     Toyota     325

13.  Jeff Gordon         Chevrolet  325

14.  Reed Sorenson       Toyota     325

15.  Jamie McMurray     Chevrolet  325

16.  David Reutimann     Toyota     325

17.  Regan Smith           Chevrolet  325

18.  AJ Allmendinger       Ford       325

19.  David Ragan            Ford       325

20.  David Gilliland          Ford       325

21.  Mark Martin             Chevrolet  325

22.  Dale Earnhardt Jr.    Chevrolet  325

23.  Bill Elliott                 Ford       325

24.  Dave Blaney             Ford       325

25.  Brad Keselowski       Dodge      324

26.  Casey Mears            Toyota     324

27.  Joey Logano             Toyota     324

28.  Patrick Carpentier      Ford       323

29.  Travis Kvapil             Ford       323

30.  Sam Hornish Jr.        Dodge      322

31.  Bobby Labonte          Chevrolet  320

32.  Kasey Kahne         Ford       310

33.  Kevin Harvick       Chevrolet  309

34.  Scott Speed         Toyota     264

35.  Paul Menard         Ford       263

36.  Greg Biffle         Ford       245

37.  Kevin Conway        Toyota     162

38.  Joe Nemechek        Toyota     161

39.  Michael McDowell    Chevrolet  160

40.  JJ Yeley            Chevrolet  152

41.  Elliott Sadler      Ford       150

42.  Mike Bliss          Toyota     145

43.  Denny Hamlin        Toyota     143