Bob Holbert won the Edgar D. Vandergrift Memorial Trophy in a Porsche RS 61 at an average speed of 74.33 mph. Roger Penske, who set an unofficial lap record of 1:17 in a bird cage Masserati, threw a rod while holding a six second lead.
The ladies race saw Donna Mae Mimns for the first time as she took the cup in a B production Corvette. Another newcomer named Bob Tullius entered the Novice race and finished third in EP in his TR-3. M.R.J. Wyllie piloted his Lola to victory in G, H, and I modified. His speed was 68.32 mph. And winning the Corvette race in CP at an identical speed was Don Yenko.