was the fastest in the first practice session with a time of 45.358 and a speed of. Denny Hamlin was the fastest in the final practice session with a time of 45.030 and a speed of.
Race summary
led the field to the green flag at 8:29 p.m. but only led the first lap, before Jamie McMurray took the lead. Kyle Busch took the lead from McMurray on lap 11, and held the lead until lap 17, when Kevin Harvick took the lead. Hamlin took back the lead on lap 22 before Harvick reassumed the head of the race the following lap. Hamlin took back the lead again on lap 24. As the field was coming to the conclusion of the first segment – on lap 29 of 30 – Jimmie Johnson, running second, got loose exiting turn 4 and hit the inside wall driver-side. This was the third consecutive year Johnson failed to finish the Unlimited. Brad Keselowski won the race off pit road to take the lead. Hamlin retook the lead not long after, before the race's biggest crash occurred. Matt Kenseth spun after making contact with Joey Logano, which led to Tony Stewart, Jeff Gordon, Harvick, Kurt Busch, Carl Edwards, Ricky Stenhouse, Jr. and Danica Patrick being collected in a nine-car crash. The crash brought out the red flag, which lasted for 11 minutes and 25 seconds. Kenseth put the incident down to him cutting off Joey Logano and failing to leave enough room for his rival upon completion. He also stated that he was "just trying to watch both lanes and I was trying as hard as I could to help my teammate". Gordon described the racing as "bumper cars at 200 miles per hour" and the cars' "closing rate is so severe". The race restarted on lap 41, with Keselowski retaking the lead not long after. Logano cycled through to the front on lap 44, before Hamlin returned to the lead and held the lead until the end of the segment, on lap 55. As determined by a fan vote, the restart order for the final segment would be the race off pit road following a mandatory pit stop. Hamlin was the first off pit road, but before the race could be restarted, the Chevrolet pace car caught fire. Chevrolet issued a statement the following morning about the incident, stating that an assessment was underway into the cause of the fire. Hamlin led the field to the restart, but his lead was not to last; McMurray and Dale Earnhardt, Jr. took spells at the front, before the fourth caution of the race. The caution, with 16 laps to go, was caused when Kyle Busch came down across the nose of Keselowski and got turned in turn 4; for the third time at the exhibition race, Busch again saved the car with minimal damage sustained. The race restarted with twelve laps to go with Earnhardt, Jr. at the front, but Logano returned to the lead at the end of the lap. With ten laps to go, Earnhardt, Jr. was hooked by Marcos Ambrose into the turn 1 wall. Reflecting upon the incident, Ambrose stated that he was "trying to help Junior there and ended up hurting him and hurting myself", but also stated that he was apologise to Earnhardt, Jr. for his "bad day". On the other side, Earnhardt, Jr. did state that he was upset with Ambrose although he did not blame him for the incident, stating that he "can't say really that it was his fault". The race restarted with five laps to go, and after Keselowski had another spell out front, Hamlin took back the lead with two laps to go and built an insurmountable lead to win his second Sprint Unlimited. Hamlin described the race as "survival of the fittest for sure", and that his Joe Gibbs Racing car was "phenomenal". Finishing behind Keselowski, in third place, was Kyle Busch. Busch described his car as "fast and had to save it again", while also praising the performance of teammate Hamlin.
