The pendulum swing of both 2014 NASCAR Sprint Cup races and Kurt Busch's racing career swung high in Sunday's STP 500. Busch's No. 41 Haas Automotion Chevy duked it out with Jimmie Johnson (2nd), who led a race-high 296 laps, each passing the other multiple times in the closing laps.

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In a nutshell: Auto Club Speedway is no longer a boring race track. After years of tepid racing on the 2-mile oval outside of LA, the last two races have been barnburners. Old pavement/tire wear and several distinct grooves have made for constant two, three, four, and sometimes five-wide racing and for hair-raising finishes. This Auto Club 400 saw Kyle Busch win the race for the 2nd year in a row and in similar late dramatic fashion.

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In a nutshell: The Food City 500 at Bristol Motor Speedway was one of those races. It was a marathon, having its scheduled 1:15 start time pushed back two hours by rain and then interrupted three hours and 19 minutes by rain again, making it a night time event. And it was a marathon in the sense that the long course of the race took its toll on so many.

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In a Nutshell: Brad Keselowski qualified on the front row and stayed near the front row most of the day in Sunday's Kobalt 400 at Las Vegas Motor Speedway. The No. 2 Miller Lite Ford gained the lead during two different pit sequences under caution during the race, when the Paul Wolfe-led team decided not to pit and others did. But it was the team's decision to pit and Dale Earnhardt Jr.'s choice not to that handed Keselowski his first win of the year.

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In a Nutshell: Kevin Harvick was the talk of the desert at Phoenix International Raceway. The track, celebrating its 50th anniversary, has played host to NASCAR Sprint Cup races since 1988 and Harvick has been a big author in its recent history, sweeping the races in 2006 and winning there last fall. The No. 4 Jimmy Johns Chevy was fastest in both Saturday practices, but started the The Profit on CNBC 500 13th.

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