Guthrie was the first woman to compete in a NASCAR Cup superspeedway race.
On May 30, 1976, Janet Guthrie shattered gender barriers by becoming the first woman to compete in a NASCAR Cup superspeedway race, participating in the World 600 at Charlotte Motor Speedway. Despite facing skepticism and resistance in an overwhelmingly male sport, Guthrie finished in 15th place, proving her skills and determination. Her participation in this prestigious event marked a groundbreaking achievement in motor racing, challenging societal norms and paving the way for future female racers in NASCAR.