Another Chase race done, another amazing run by the championship contenders — shifting spots, gears and places in the points standings. It is getting late in the season, and every race at this juncture has its importance increased tenfold. There are four races left, and still a myriad of possibilities to befall the field of Chasers. Still, Brad Keselowski and Jimmie Johnson have maintained first and second, respectively, in points for a while now — albeit by a very thin margin. So, the question is, can one race at this point separate the leaders from the field? Will Martinsville make the Chase a two-man race? David Caraviello and Nick Margiasso are on opposite sides of the spectrum. Read their arguments and weigh in with your comments below.