A stacked 24-car field is entered for Rounds Three and Four of the Cooper Tires USF2000 Championship Powered by Mazda this weekend at Barber Motorsports Park in Birmingham, Ala., headed by the Pabst Racing duo of Jordan Lloyd and Yufeng Luo, who each claimed a win and a second-place finish in the opening two rounds of the 16-race season last month in St. Petersburg, Fla. The Cooper Tires USF2000 Grand Prix of Alabama will feature a pair of races on the scenic 2.3-mile road course.