Mak Kronn, John W. Fritsch Racing, McKee Mk VI Chevrolet, signals while battling with Bob Brown, Lola T70 Mk II Chevrolet, Dan Gurney, All American Racers, Lola T70 Mk II Ford, and Earl Jones, Charles Hayes Racing, McLaren Elva Mk II Chevrolet. They lead Eppie Wietzes, Comstock Racing Team, Ford GT40, Charlie Hayes, Nickey Chevrolet, McLaren Elva Mk II Chevrolet, Bill Eve, Eve & Jones Racing, Genie Mk X Ford, and Ludwig Heimrath, McLaren Elva Mk II Ford.