Thursday 18th April 1968
Bobby Isaac won the 100 mile NASCAR GN race on the 1/2 mile dirt Columbia Speedway, South Carolina, US. It was Isaac’s first win since February 1964. Isaac took the lead on lap 15 and led the rest of the way. Isaac’s lead was so great that on lap 138, he ran out of gas and coasted to the pits without losing the lead. Charlie Glotzbach got around James Hylton late in the race to take 2nd as Dodges swept the top 4 spots. Richard Petty earned no points for his 5th place finish as he failed to submit written entries for the second straight race.