1970 - Can-Am. 4th at Daytona & Le Mans
1971 - retired US GP (Surtees). Formula A
1972 - 12th US GP (Champcarr Inc - Surtees Cos). Formula A. Indycars (5th
at Indianapolis and Pocono)
1973 - Indycars (6th at Ontario)
1975 - Won Sebring 12 Hrs (BMW 3.0 CSL) with B.Redman, A.Moffat & H.Stuck