A fifth caution soon followed on lap 123 when Kasey Kahne got loose and found the wall, collecting the innocent bystander Sam Hornish Jr along the way. While most of the leaders duly pitted, Mark Martin led those who stayed out and hence headed the field at the restart with Martin Truex Jr., Jamie McMurray, Juan Montoya and Jimmie Johnson right behind him as the others to opt to go out of sync.
McMurray took the lead from Martin on lap 136 and proceeded to pull out a 4s lead, and Montoya was struggling with a loose car and easy fodder for Jimmie Johnson and Kyle Busch to blow past him, as the race once again entered a settled period of green flag running that included the next round of pit stops starting on lap 168; McMurray kept the lead through the pit sequence but shortly thereafter was ousted by Jimmie Johnson on lap 189.
Further back, Jeff Gordon had reported a loss of power due to alternator problems, and struggled to get back into pit road, going a lap down in the process; he was lucky that the sixth caution of the night arrived shortly thereafter on lap 203 (Marcos Ambrose spinning near pit road) which gave him a free pass back onto the lead lap. Kyle Busch had one of his trademark blistering pit stops and emerged back into the lead, with Jamie McMurray in second and Jimmie Johnson dropping back to fifth place.
McMurray has clawed back Busch's lead when the seventh yellow came out on lap 239 when Robby Gordon went for a joy ride through the infield grass; Kyle once again headed the field at the restart and easily maintained the lead ahead of Denny Hamlin, Jamie McMurray, Jimmie Johnson and Greg Biffle. Johnson posed the biggest challenge to Busch's lead at the restart, but the racing only lasted a brief time before an eighth yellow of the night materialised in the form of Jeff Gordon getting loose and sliding across the track; the car was full of smoke as Burton tried to navigate his way back to pit lane to get the car checked over, which put him the last car on the lead lap as everyone else declined to come in for a service so soon after the last.
The race resumed on lap 250 with another great restart by Kyle Busch easily holding off Johnson at first, but things quickly tightened up between the two of them and McMurray. It was becoming a three-horse race with only just over 80 laps to go – a distance that meant one more round of pit stops awaited everyone. They duly commended on lap 289, after which Kyle was back in the lead ahead of McMurray, Johnson and Denny Hamlin; Jeff Gordon's day was getting ever worse, however, as he got a pit lane speeding violation penalty to add to his woes and leaving him stuck in the mid-twenties, position-wise.
Busch's lead over McMurray was starting to falter when the ninth and final caution of the evening came out on lap 308 for debris, a yellow that the leaders weren't happy to see – and like Clint Bowyer in recent weeks, some were suspecting just how valid some of these “debris” cautions were and how much they might be NASCAR working to “liven up the show” for the grand finish. Kyle Busch in particular wasn't happy with the call – and the next few minutes proved why.
Kyle still had the lead over McMurray, Johnson, Hamlin and Biffle at the final restart on lap 313 after they all opted not to take up the opportunity of a final pit stop; but the pace of the #18 was not what it was, and Kyle couldn't make that same rocket launch of a start and build up the same margin he'd enjoyed just a few laps earlier. Next time around, Jamie McMurray cleared Busch on the backstretch and took the lead with just 20 laps remaining – and Kyle didn't seem to have anything in reserve with which to answer.
Kyle did manage to hold off Jimmie all the way to the chequered flag, but the win had indeed been lost by that late caution and Kyle is never one to be happy with a “mere” second place: “I'm supposed to win,” Busch said afterwards. “That's the way we're supposed to run. It still doesn't matter how good we run; we still figure out how to give it up. Or I figure out how to give it up, I should say.” Although television cameras had indeed picked up on and shown debris on the circuit at the time, he was still seething about the final caution: “I don't know what the caution was for. You know, apparently there was a mouse that ran across the race track or something,” he complained.
McMurray celebrated the win, but he's not in the Chase, and while Kyle Busch's second place has done something to repair the damage of his engine blow-up at Fontana, Jimmie Johnson's third place only strengthened his hand in the Sprint Cup especially with Jeff Gordon hitting so many problems at Charlotte. “Tonight is a night that reminds me of the last four years, and what made this team champions,” he said afterwards. “I hope that tonight's performance leads us to a championship. There's obviously a lot of racing left. No telling what's going to happen. But when we look back, I hope we are the champions, and I hope we look back and say that Charlotte was the key point for us in the championship battle. We kept our composure.”
Whichever way you look at it, the Sprint Cup Chase has now narrowed to effectively just three runners: Johnson, Denny Hamlin and Kevin Harvick. Harvick's been quiet in the last few races but has stayed out of trouble, but it's Hamlin who looks to have the momentum to present the best challenge to the #48. However the smart money has to be on Johnson to retain his crown, and it's up to the others to catch him if they can.