In 2013, Johnson began his season with a 14th-place finish in the 2013 Sprint Unlimited when he crashed on lap 14 along with Kyle Busch, Kurt Busch, Mark Martin, Jeff Gordon, and Denny Hamlin. Afterward, he placed fourth in the first Budweiser Duel, resulting in a ninth-place starting position in the 2013 Daytona 500. In the Daytona 500, Johnson started well, assuming the lead from Jeff Gordon on lap 32 and leading a handful of laps before falling back to the middle of the pack. Over the last few laps, Johnson was racing alongside Brad Keselowski for the lead until a caution came out for debris. Johnson took the advantage of leading on the last restart. With five laps to go, Johnson led a lane with Greg Biffle and Danica Patrick. He then held off a last lap charge from Dale Earnhardt, Jr. and Mark Martin to win his second Daytona 500. This was Johnson's first Daytona 500 win with Knaus, as he won the 2006 race with Darian Grubb as Knaus was serving a five-race suspension. It was also the first time since his 2006 win that he finished better than 27th in the Daytona 500, after a streak of six years where he had never finished better than 27th because of crashes and mechanical failures.