MARTINSVILLE, Va. — The message to Sammy Smith from the No. 8 JR Motorsports radio was delivered loud and clear. That over-the-air signal was a reminder of the fray that exploded on the last lap ...

Saturday's 300-lap race will begin shortly after 5 p.m. on the 0.533-mile concrete oval, which has played host to the Xfinity Series exclusively under the lights in the fall since ...