Clark led from the start and although Foyt passed him on the second lap, the Lotus 38 roared past on lap 3 and from then on the only time Clark lost the lead was on lap 65 when he had his first pit stop. Foyt led until his stop on lap 74 and from then on Clark was never headed. The Scotsman led all but 10 laps and won with only four other cars on the lead lap, with the rest of the finishers all at least 2 laps behind. With Parnelli Jones finishing second (also in a modified 34), it was payback for Clark and Lotus losing the race in 1963 when many, including team owner/founder Colin Chapman and journalist/author Brock Yates, felt that Jones' oil spewing front engined roadster should have been black flagged.
