MARTINSVILLE, Va. — Jimmie Johnson’s expectations are high at Martinsville Speedway, and his results keep showing why.

The five-time series champion raced to his seventh career victory on NASCAR’s trickiest oval Sunday, and the triumph helped him erase a 7-point deficit and supplant Brad Keselowski as the points leader with three events remaining. But before handing Johnson the title, he cautioned, there’s plenty of racing yet to do.