PORSCHE RACING HISTORYCan-Am - Canadian-American Challenge Cup
1969
13 July 1969 - Can-Am Watkins Glen
17 August 1969 - Can-Am Mid-Ohio
31 August 1969 - Can-Am Road America
14 September 1969 - Can-Am Bridgehampton
28 September 1969 - Can-Am Michigan
12 October 1969 - Can-Am Laguna Seca
26 October 1969 - Can-Am Riverside
9 November 1969 - Can-Am Texas
1970
14 June 1970 - Can-Am Mosport
12 July 1970 - Can-Am Watkins Glen
26 July 1970 - Can-Am Edmonton
23 August 1970 - Can-Am Mid-Ohio
30 August 1970 - Can-Am Road America
13 September 1970 - Can-Am Road Atlanta
27 September 1970 - Can-Am Donnybrooke
1 November 1970 - Can-Am Riverside
1971
13 June 1971 - Can-Am Mosport
27 June 1971 - Can-Am St. Jovite
11 July 1971 - Can-Am Road Atlanta
25 July 1971 - Can-Am Watkins Glen
22 August 1971 - Can-Am Mid-Ohio
29 August 1971 - Can-Am Road America
12 September 1971 - Can-Am Donnybrooke
26 September 1971 - Can-Am Edmonton
17 October 1971 - Can-Am Laguna Seca
31 October 1971 - Can-Am Riverside
1972
11 June 1972 - Can-Am Mosport
9 July 1972 - Can-Am Road Atlanta
23 July 1972 - Can-Am Watkins Glen
6 August 1972 - Can-Am Mid-Ohio
27 August 1972 - Can-Am Road America
17 September 1972 - Can-Am Donnybrooke
1 October 1972 - Can-Am Edmonton
15 October 1972 - Can-Am Laguna Seca
29 October 1972 - Can-Am Riverside
1973
10 June 1973 - Can-Am Mosport
8 July 1973 - Can-Am Road Atlanta
22 July 1973 - Can-Am Watkins Glen
12 August 1973 - Can-Am Mid-Ohio
26 August 1973 - Can-Am Road America
16 September 1973 - Can-Am Edmonton
14 October 1973 - Can-Am Laguna Seca
29 October 1973 - Can-Am Riverside