Event: NASA 25 Hours of Ozarks Location: Ozarks International Raceway Date: June 25-28 Classes: 6 classes HYC — (Hypercar) PLE — (Prototype Lite Endurance) GTE — (Grand Touring Endurance) - GT Cars, Production Cars and Tin Tops. NASA Super Touring GT rules. STE — (Super Touring Endurance) NASA Super Touring 2 rules TC1 — Touring Car 1 NASA Super Touring 4 rules TC2 — Touring Car 2 NASA Super Touring 5 rules Contact Event Director: Randy Lane: Rlane@drivenasa.com DriveNASA.com for reg page