Tony Stewart let his crew chief set the final strategy in the closing laps Sunday at Martinsville Speedway, where the decision not to take tires put him in contention for his first victory of the year.
Matt Kenseth won the pole for the AAA Texas 500 by the slimmest of margins over Jeff Gordon, while Tony Stewart set a new track qualifying record with a lap at 200 mph during Friday's qualifying at Texas Motor Speedway.
Keselowski and Harvick are currently ranked seven and eighth, respectively, in the eight-driver Chase field for the Eliminator Round. The third round in the playoffs began last Sunday at Martinsville, the only short track on the Chase schedule.
Formula One championship leader Lewis Hamilton posted the fastest time in Friday's two practice sessions at the U.S. Grand Prix, but abandoned the second session with about 10 minutes to go to deal with a fluid leak on the cockpit floor.
Hamilton, now in his second season with Mercedes, has won the last four grand prix -- Italy, Singapore, Japan and Russia. He currently holds a 17-point lead over his teammate and championship rival Nico Rosberg.