What racing series has the worst crashes? On February 15, 2024, at Ocala Speedway, Zach Daum's USAC Sprint Car heat race ended in spectacular fashion when his car tangled with Justin Grant's machine exiting turn 3. The violent contact launched Daum's sprint car over the cushion, sending it flipping wildly as it cleared the track's barrier and tumbled into the darkness beyond the racing surface. While Grant continued after the incident, Daum climbed from his destroyed machine under his own power