William Byron led a Chevrolet sweep of the top-five positions in Friday's NASCAR Cup Series Daytona 500 practice.

In a session shortened by rain, defending Daytona 500 winner William Byron topped the leaderboard in Friday evening’s NASCAR Cup Series practice at Daytona International Speedway. The driver of the No.

Before making his exit from the Snowball Derby, Nasse found William Byron under caution and rammed into him, taking the young and still up-and-coming driver out, before launching a tirade into what the difference between him and the 19-year-old who had run into him was.

William Byron paced a weather-shortened Daytona 500 practice session Friday evening with Hendrick Motorsports teammate Chase Elliott in tow. Byron, the defending Daytona 500 champion, was fastest