'The 1958 Old Dominion 500 was a Convertible Series event held at Martinsville Speedway on June 8, 1958. Fireball Roberts claimed his second and final race of the year, leading 222 of the 500 laps in route to a blistering four-lap victory on Glen Wood. Eventual season champ Bob Welborn seemed to be the only person who could content with Roberts, but radiator issues dumped him to 23rd. Stats