In 1973, Follmer competed in Formula One with Don Nichols' UOP Shadow team. He took part in his first Grand Prix, in South Africa, at the age of 39 years and 1 month - making him F1's oldest débutant since the 1950s, a distinction he still holds. In 13 Championship races, his best results were 6th in South Africa and a podium 3rd in Spain, in his first two Grands Prix, which gave him 13th in the Drivers' Championship with five points. He also competed in several non-Championship races.