The jet demonstration performances with Herbst ended tragically on July 4, 1946, when Herbst crashed at the Del Mar Racetrack after his aircraft stalled during an encore of their routine finale in which the P-80s did a loop while configured to land. Later that same year Olds took second place in the Thompson Trophy Race (Jet Division) of the Cleveland National Air Races at Brook Park, Ohio, over the Labor Day weekend. In this first "closed course" jet race, six P-80s competed against each other on a three pylon course 30 miles in length.