Expect some good, old-fashioned "boys have at it" racing today at Virginia's Martinsville Speedway, as Cup contenders have their last chance to qualify for the Championship 4 in the Xfinity 500. A field including Kevin Harvick, Denny Hamlin, Kurt Busch, Chase Elliott and Brad Keselowski will be trading paint on the half-mile oval, where Martin Truex Jr. won both a year ago and earlier this season in the spring race.