Byron, who had dominated the event and won the first two stages having led 176 of 271 laps, lost the lead during a round of late pitstops and it appeared his Hendrick Motorsports team-mate Kyle Larson was set to cruise to victory.
But Aric Almirola’s spin seven laps from the end sent the race into a two-lap overtime. Martin Truex Jr elected to remain on the track while Byron and Larson came out second and third, thanks to two-tyre stops.
