![William Byron fastest overall in NASCAR Cup practice at COTA](https://cdn-6.motorsport.com/images/amp/Yv8N4D10/s6/william-byron-hendrick-motorsp.jpg)
Byron, who won the pole for this race a year ago, was among the last cars to complete laps at the end of 1½ hours of practice and with time already expired registered the fastest average lap speed of the day at 94.415 mph.Teams were split into two groups and each group given a pair of 20-minute sessions on the track since it’s the first road course race of the season with NASCAR’s new aero ...
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