The NASCAR Xfinity Series race at Martinsville Speedway concluded with a dramatic post-race altercation. Driver Chandler Smith confronted fellow racer Cole Custer, ending with Smith throwing a punch before team members got involved in the brawl.

The NASCAR Cup Series will set the Championship 4 during Sunday's Xfinity 500 race at Martinsville Speedway. Tyler Reddick locked himself into the Championship 4 with the last-lap pass and win at Homestead last week,