Eldora Speedway is a 0.500 mi high-banked clay dirt oval. Located north of Rossburg, Ohio in the village of New Weston, Ohio, its website claims capacity for 22,886 spectators in the permanent grandstand, and unlimited admittance for the grass hillside spectator area. The permanent grandstand and VIP suite seats make it the largest sports stadium in …Eldora Speedway is a 0.500 mi high-banked clay dirt oval. Located north of Rossburg, Ohio in the village of New Weston, Ohio, its website claims capacity for 22,886 spectators in the permanent grandstand, and unlimited admittance for the grass hillside spectator area. The permanent grandstand and VIP suite seats make it the largest sports stadium in the Dayton, Ohio-region according to the Dayton Business Journal.