It was a long day at the office for everyone involved in the storm-hit Daytona 500, but the race finally ended under the floodlights with Dale Earnhardt Jr. in victory lane.
Matt Kenseth won a caution-free first Duel on Thursday night, while Denny Hamlin won the second after escaping a major multi-car wreck on the final lap.
Michael Waltrip Racing has confirmed that Martin Truex Jr. broke his right wrist in an accident at Bristol Motor Speedway on Saturday, but that he will attempt to race this weekend.
Matt Kenseth won the Southern 500 at Darlington Speedway with his team mate Denny Hamlin completing the race in second, on a night dominated by Joe Gibbs Racing.
Kyle Busch completed a sweep of the Texas Motor Speedway race weekend, winning the NRA 500 over Martin Truex Jr. having led for a total of 171 of the 334 laps of the 1.5-mile superspeedway.
Jimmie Johnson lay down the championship gauntlet early, declaring his intentions to win a sixth 2013 Sprint Cup title by clinching his second Daytona 500.
Kyle Busch has signed a multi-year extension to his current contract with Joe Gibbs Racing, meaning that the controversial driver will continue with the team at least through 2015.
Kevin Harvick won the AdvoCare 500 at Phoenix International Raceway in bizarre and controversial circumstances, after a race that may have decided the 2012 Sprint Cup championship.
Kyle Busch has issued a public apology for comments he made after the end of a disappointing Cup race last weekend at Dover in which he heavily criticised engine suppliers Toyota.
Kyle Busch has been dropped by his main sponsor, confectionery brand M&M's, for the rest of the season following Busch's on-track retaliation against Ron Hornaday that saw him penalised at Texas.
Clint Bowyer won a last lap shoot out with his Richard Childress Racing team mate Jeff Burton at Talladega, in a race that proved costly for a number of Chase contenders.
The three crew chiefs of the Joe Gibbs Racing teams of Denny Hamlin, Kyle Busch and Joey Logano have been handed large fines for trying to enter the Michigan race with unapproved oil pans.