The 1955 Mid-South 250 was a Grand National (now Sprint Cup) event held at Memphis-Arkansas Speedway on August 14, 1955. Fonty Flock dominated the event, leading 88 of the 167 laps in route to victory over Speedy Thompson and the rest of the field. Eventual season champ Tim Flock led the other 79 laps before falling to 3rd. Stats