1966 (Champion: John Surtees)
1. St Jovite (CDN), Sep 11-John Surtees (GB)-Lola T70-Chevrolet #3
2. Bridgehampton (USA), Sep 18-Dan Gurney (USA)-Lola T70-Ford #30
3. Mosport, Sep 24-Mark Donohue (USA)-Lola T70-Chevrolet #6
4. Laguna Seca (USA), Oct 16-Phil Hill (USA)-Chaparral 2E-Chevrolet #65
5. Riverside (USA), Oct 30-John Surtees (GB)-Lola T70-Chevrolet #7
6. Las Vegas (USA), Nov 13-John Surtees (GB)-Lola T70-Chevrolet #7

1967 (Champion: Bruce McLaren)
1. Elkhart Lake (USA), Sep 3-Denny Hulme (NZ)-McLaren M6A-Chevrolet #5
2. Bridgehampton (USA), Sep 17-Denny Hulme (NZ)-McLaren M6A-Chevrolet #5
3. Mosport, Sep 23-Denny Hulme (NZ)-McLaren M6A-Chevrolet #5
4. Laguna Seca (USA), Oct 15-Bruce McLaren (NZ)-McLaren M6A-Chevrolet #4
5. Riverside (USA), Oct 29-Bruce McLaren (NZ)-McLaren M6A-Chevrolet #4
6. Las Vegas (USA), Nov 12-John Surtees (GB)-Lola T70-Chevrolet #7

1968 (Champion: Denny Hulme)
1. Elkhart Lake (USA), Sep 1-Denny Hulme (NZ)-McLaren M8A-Chevrolet #5
2. Bridgehampton (USA), Sep 15-Mark Donohue (USA)-McLaren M6B-Chevrolet #6
3. Edmonton (CDN), Sep 29-Denny Hulme (NZ)-McLaren M8A-Chevrolet #5
4. Laguna Seca (USA), Oct 13-John Cannon (CDN)-McLaren M1B-Chevrolet #62
5. Riverside (USA), Oct 27-Bruce McLaren (NZ)-McLaren M8A-Chevrolet #4
6. Las Vegas (USA), Nov 10-Denny Hulme (NZ)-McLaren M8A-Chevrolet #5

1969 (Champion: Bruce McLaren)
1. Mosport (CDN), Jun 1-Bruce McLaren (NZ)-McLaren M8B-Chevrolet #4
2. St Jovite (CDN), Jun 15-Denny Hulme (NZ)-McLaren M8B-Chevrolet #5
3. Watkins Glen (USA), Jul 13-Bruce McLaren (NZ)-McLaren M8B-Chevrolet #4
4. Edmonton (CDN), Jul 27-Denny Hulme (NZ)-McLaren M8B-Chevrolet #5
5. Mid-Ohio (USA), Aug 17-Denny Hulme (NZ)-McLaren M8B-Chevrolet #5
6. Elkhart Lake (USA), Aug 31-Bruce McLaren (NZ)-McLaren M8B-Chevrolet #4
7. Bridgehampton (USA), Sep 14-Denny Hulme (NZ)-McLaren M8B-Chevrolet #5
8. Michigan (USA), Sep 28-Bruce McLaren (NZ)-McLaren M8B-Chevrolet #4
9. Laguna Seca (USA), Oct 12-Bruce McLaren (NZ)-McLaren M8B-Chevrolet #4
10. Riverside (USA), Oct 26-Denny Hulme (NZ)-McLaren M8B-Chevrolet #5
11. Texas (USA), Nov 9-Bruce McLaren (NZ)-McLaren M8B-Chevrolet #4

1970 (Champion: Denny Hulme)
1. Mosport (CDN), Jun 14-Dan Gurney (USA)-McLaren M8D-Chevrolet #48
2. St Jovite (CDN), Jun 28-Dan Gurney (USA)-McLaren M8D-Chevrolet #48
3. Watkins Glen (USA), Jul 12-Denny Hulme (NZ)-McLaren M8D-Chevrolet #5
4. Edmonton (CDN), Jul 26-Denny Hulme (NZ)-McLaren M8D-Chevrolet #5
5. Mid-Ohio (USA), Aug 23-Denny Hulme (NZ)-McLaren M8D-Chevrolet #5
6. Elkhart Lake (USA), Aug 30-Peter Gethin (GB)-McLaren M8D-Chevrolet #7
7. Road Atlanta (USA), Sep 13-Tony Dean (GB)-Porsche 908 #8
8. Brainerd (USA), Sep 27-Denny Hulme (NZ)-McLaren M8D-Chevrolet #5
9. Laguna Seca (USA), Oct 18-Denny Hulme (NZ)-McLaren M8D-Chevrolet #5
10. Riverside (USA), Nov 1-Denny Hulme (NZ)-McLaren M8D-Chevrolet #5

1971 (Champion: Peter Revson)
1. Mosport (CDN), Jun 13-Denny Hulme (NZ)-McLaren M8F-Chevrolet #5
2. St Jovite (CDN), Jun 27-Jackie Stewart (GB)-Lola T260-Chevrolet #1
3. Road Atlanta (USA), Jul 11-Peter Revson (USA)-McLaren M8F-Chevrolet #7
4. Watkins Glen (USA), Jul 25-Peter Revson (USA)-McLaren M8F-Chevrolet #7
5. Mid-Ohio (USA), Aug 22-Jackie Stewart (GB)-Lola T260-Chevrolet #1
6. Elkhart Lake (USA), Aug 29-Peter Revson (USA)-McLaren M8F-Chevrolet #7
7. Brainerd (USA), Sep 12-Peter Revson (USA)-McLaren M8F-Chevrolet #7
8. Edmonton (CDN), Sep 26-Denny Hulme (NZ)-McLaren M8F-Chevrolet #5
9. Laguna Seca (USA), Oct 17-Peter Revson (USA)-McLaren M8F-Chevrolet #7
10. Riverside (USA), Oct 31-Denny Hulme (NZ)-McLaren M8F-Chevrolet #5

1972 (Champion: George Follmer)
1. Mosport (CDN), Jun 11-Denny Hulme (NZ)-McLaren M20-Chevrolet #5
2. Road Atlanta (USA), Jul 9-George Follmer (USA)-Porsche 917/10 #6
3. Watkins Glen (USA), Jul 23-Denny Hulme (NZ)-McLaren M20-Chevrolet #5
4. Mid-Ohio (USA), Aug 6-George Follmer (USA)-Porsche 917/10 #6
5. Elkhart Lake (USA), Aug 27-George Follmer (USA)-Porsche 917/10 #6
6. Brainerd (USA), Sep 17-Francois Cevert (F)-McLaren M8F-Chevrolet #22
7. Edmonton (CDN), Oct 1-Mark Donohue (USA)-Porsche 917/10 #6
8. Laguna Seca (USA), Oct 15-George Follmer (USA)-Porsche 917/10 #7
9. Riverside (USA), Oct 29-George Follmer (USA)-Porsche 917/10 #7

1973 (Champion: Mark Donohue)
1. Mosport (CDN), Jun 10-Charlie Kemp (USA)-Porsche 917/10 #23
2. Road Atlanta (USA), Jul 8-George Follmer (USA)-Porsche 917/10 #16
3. Watkins Glen (USA), Jul 21-Mark Donohue (USA)-Porsche 917/30 #6
4. Mid-Ohio (USA), Aug 12-Mark Donohue (USA)-Porsche 917/30 #6
5. Elkhart Lake (USA), Aug 26-Mark Donohue (USA)-Porsche 917/30 #6
6. Edmonton (CDN), Sep 16-Mark Donohue (USA)-Porsche 917/30 #6
7. Laguna Seca (USA), Oct 14-Mark Donohue (USA)-Porsche 917/30 #6
8. Riverside (USA), Oct 28-Mark Donohue (USA)-Porsche 917/30 #6

1974 (Champion: Jackie Oliver)
1. Mosport (CDN), Jun 16-Jackie Oliver (GB)-Shadow DN4A-Chevrolet #101
2. Road Atlanta (USA), Jul 7-Jackie Oliver (GB)-Shadow DN4A-Chevrolet #101
3. Watkins Glen (USA), Jul 14-Jackie Oliver (GB)-Shadow DN4A-Chevrolet #101
4. Mid-Ohio (USA), Aug 11-Jackie Oliver (GB)-Shadow DN4A-Chevrolet #101
5. Elkhart Lake (USA), Aug 25-Scooter Patrick (USA)-McLaren M20-Chevrolet #8

1975-76 NO SERIES

1977 (Champion: Patrick Tambay)
1. St Jovite (CDN), Jun 12-Tom Klausler (USA)-Schkee DB1-Chevrolet #6
2. Laguna Seca (USA), Jun 26-Don Breidenbach (USA)-Lola T332C-Chevrolet #77
3. Watkins Glen (USA), Jul 10-Patrick Tambay (F)-Lola T333CS-Chevrolet #1
4. Elkhart Lake (USA), Jul 24-Peter Gethin (GB)-Lola T333CS-Chevrolet #4
5. Mid-Ohio (USA), Aug 7-Patrick Tambay (F)-Lola T333CS-Chevrolet #1
6. Mosport (CDN), Aug 21-Patrick Tambay (F)-Lola T333CS-Chevrolet #1
7. Trois-Rivieres (CDN), Sep 4-Patrick Tambay (F)-Lola T333CS-Chevrolet #1
8. Sears Point (USA), Sep 25-Patrick Tambay (F)-Lola T333CS-Chevrolet #1
9. Riverside (USA), Oct 16-Patrick Tambay (F)-Lola T333CS-Chevrolet #1

1978 (Champion: Alan Jones)
1. Road Atlanta (USA), May 14-Alan Jones (AUS)-Lola T333CS-Chevrolet #1
2. Charlotte (USA), May 27-Elliott Forbes-Robinson (USA)-Spyder NF10-Chevrolet #3
3. Mid-Ohio (USA), Jun 11-Alan Jones (AUS)-Lola T333CS-Chevrolet #1
4. St Jovite (CDN), Jun 25-George Follmer (USA)-Prophet-Chevrolet #8
5. Watkins Glen (USA), Jul 9-Warwick Brown (AUS)-Lola T333CS-Chevrolet #2
6. Elkhart Lake (USA), Jul 23-Alan Jones (AUS)-Lola T333CS-Chevrolet #1
7. Mosport (CDN), Aug 20-Alan Jones (AUS)-Lola T333CS-Chevrolet #1
8. Trois-Rivieres (CDN), Sep 4-Elliott Forbes-Robinson (USA)-Spyder NF10-Chevrolet #3
9. Laguna Seca (USA), Oct 8-Al Holbert (USA)-Lola T333CS-Chevrolet #10
10. Riverside (USA), Oct 15-Alan Jones (AUS)-Lola T333CS-Chevrolet #1

1979 (Champion: Jacky Ickx)
1. Road Atlanta (USA), May 6-Keke Rosberg (FIN)-Spyder NF11-Chevrolet #5
2. Charlotte (USA), May 19-Jacky Ickx (B)-Lola T333CS-Chevrolet #1
3. Mosport (CDN), Jun 3-Jacky Ickx (B)-Lola T333CS-Chevrolet #1
4. Mid-Ohio (USA), Jun 10-Alan Jones (AUS)-Lola T333CS-Chevrolet #1
5. Watkins Glen (USA), Jul 8-Keke Rosberg (FIN)-Spyder NF11-Chevrolet #5
6. Elkhart Lake (USA), Jul 22-Jacky Ickx (B)-Lola T333CS-Chevrolet #1
7. Brainerd (USA), Aug 19-Jacky Ickx (B)-Lola T333CS-Chevrolet #1
8. Trois-Rivieres (CDN), Sep 2-Elliott Forbes-Robinson (USA)-Spyder NF11-Chevrolet #4
9. Laguna Seca (USA), Oct 14-Bobby Rahal (USA)-Prophet-Chevrolet #8
10. Riverside (USA), Oct 15-Jacky Ickx (B)-Lola T333CS-Chevrolet #1

1980 (Champion: Patrick Tambay)
1. Sears Point (USA), May 25-Patrick Tambay (F)-Lola T530-Chevrolet #1
2. Mid-Ohio (USA), Jun 8-Patrick Tambay (F)-Lola T530-Chevrolet #1
3. Mosport (CDN), Jun 27-Patrick Tambay (F)-Lola T530-Chevrolet #1
4. Watkins Glen (USA), Jul 5-Patrick Tambay (F)-Lola T530-Chevrolet #1
5. Elkhart Lake (USA), Jul 20-Al Holbert (USA)-Holbert CAC 1-Chevrolet #14
6. Brainerd (USA), Aug 10-Patrick Tambay (F)-Lola T530-Chevrolet #1
7. Trois-Rivieres (CDN), Aug 24-Patrick Tambay (F)-Lola T530-Chevrolet #1
8. Road Atlanta (USA), Aug 31-Geoff Brabham (AUS)-Lola T530-Chevrolet #3
9. Laguna Seca (USA), Oct 19-Al Unser (USA)-Frissbee-Chevrolet #15
10. Riverside (USA), Oct 26-Al Holbert (USA)-Holbert CAC 1-Chevrolet #14

1981 (Champion: Geoff Brabham)
1. Mosport (CDN), Jun 14-Teo Fabi (I)-March 817-Chevrolet #6
2. Mid-Ohio (USA), Jun 28-Teo Fabi (I)-March 817-Chevrolet #6
3. Watkins Glen (USA), Jul 11-Al Holbert (USA)-CAC 2-Chevrolet
4. Elkhart Lake (USA), Jul 26-Geoff Brabham (AUS)-Lola T530-Chevrolet #3
5. Edmonton (CDN), Aug 16-Geoff Brabham (AUS)-VDS 001-Chevrolet #3
6. Trois-Rivieres (CDN), Sep 6-Al Holbert (USA)-CAC 2-Chevrolet
7. Mosport (CDN), Sep 13-Teo Fabi (I)-March 817-Chevrolet #6
8. Riverside (USA), Oct 10-Al Holbert (USA)-Holbert CAC 2-Chevrolet #14
9. Laguna Seca (USA), Oct 12-Teo Fabi (I)-March 817-Chevrolet #6
10. Las Vegas (USA), Oct 16-Danny Sullivan (USA)-Frissbee GR2-Chevrolet #4

1982 (Champion: Al Unser Jr)
1. Road Atlanta (USA), May 23-Al Unser Jr (USA)-Frissbee GR3-Chevrolet #15
2. Mosport (CDN), Jun 6-Al Unser Jr (USA)-Frissbee GR3-Chevrolet #15
3. Mid-Ohio (USA), Jun 27-Al Holbert (USA)-VDS 001-Chevrolet #1
4. Elkhart Lake (USA), Jul 25-Al Holbert (USA)-VDS 001-Chevrolet #1
5. Trois-Rivieres (CDN), Sep 5-Al Holbert (USA)-VDS 001-Chevrolet #1
6. Mosport (CDN), Sep 12-Al Unser Jr (USA)-Frissbee GR3-Chevrolet #15
7. Las Vegas (USA), Sep 26-Danny Sullivan (USA)-March 827-Chevrolet #5
8. Riverside (USA), Oct 3-Al Holbert (USA)-VDS 001-Chevrolet #1
9. Laguna Seca (USA), Oct 12-Al Unser Jr (USA)-Frissbee GR3-Chevrolet #15

1983 (Champion: Jacques Villeneuve Sr)
1. Mosport (CDN), Jun 5-Jacques Villeneuve Sr (CDN)-Frissbee GR3-Chevrolet #6
2. Lime Rock (USA), Jul 3-Jim Crawford (GB)-Ensign N180B-Ford #7
3. Elkhart Lake (USA), Jul 18-John Fitzpatrick (GB)-Porsche 956 #11
4. Trois-Rivieres (CDN), Sep 4-Jacques Villeneuve Sr (CDN)-Frissbee GR3-Chevrolet #6
5. Mosport (CDN), Sep 11-Jim Crawford (GB)-Ensign N180B-Ford #7
6. Sears Point (USA), Oct 9-Jacques Villeneuve Sr (CDN)-Frissbee GR3-Chevrolet #6

1984 (Champion: Michael Roe)
1. Mosport (CDN), Jun 10-Michael Roe (IRL)-VDS 002-Chevrolet #2
2. Dallas (USA), Jul 7-Michael Roe (IRL)-VDS 002-Chevrolet #2
3. Brainerd (USA), Jul 22-Michael Roe (IRL)-VDS 002-Chevrolet #2
4. Lime Rock (USA), Aug 4-Michael Roe (IRL)-VDS 002-Chevrolet #2
5. Road Atlanta (USA), Aug 19-Jim Crawford (GB)-March 847-Chevrolet #0
6. Trois-Rivieres (CDN), Sep 2-Jim Crawford (GB)-March 847-Chevrolet #0
7. Mosport (CDN), Sep 9-Michael Roe (IRL)-VDS 002-Chevrolet #2
8. Sears Point (USA), Sep 30-Michael Roe (IRL)-VDS 002-Chevrolet #2
*9. Riverside (USA), Oct 7-Michael Roe (IRL)-VDS 002-Chevrolet #2T
10. Green Valley (USA), Oct 28-Jim Crawford (GB)-March 847-Chevrolet #0
*Roe practised car #2 but raced the spare, #2T

1985 (Champion: Rick Miaskiewicz)
1. Mosport (CDN), Jun 2-Horst Kroll (USA)-Frissbee KR3-Chevrolet #37
2. Lime Rock (USA), Jul 6-Bruce McInnes (USA)-Lola-Chevrolet #1
3. Lime Rock (USA), Sep 2-Rick Miaskiewicz (USA)-Frissbee GR3-Chevrolet #3
4. Mosport (CDN), Sep 15-Rick Miaskiewicz (USA)-Frissbee GR3-Chevrolet #3
5. St Louis (USA), Oct 13-Rick Miaskiewicz (USA)-Frissbee GR3-Chevrolet #3
6. St Petersburg (USA), Nov 3-Lou Sell (USA)-March 832-BMW #5

1986 (Champion: Horst Kroll)
1. Mosport (CDN), Jun 2-Horst Kroll (USA)-Frissbee KR3-Chevrolet #37
2. Summit Point (USA), Jul 5-Bill Tempero (USA)-March 84C-Chevrolet #15
3. St Louis (USA), Aug 3-Lou Sell (USA)-March 832-BMW #5
4. Mosport (CDN), Sep 14-Paul Tracy (CDN)-Frissbee KR4-Chevrolet #38

Total races: 155

Winning drivers

22 wins-Denny Hulme
12 wins-Patrick Tambay
10 wins-Al Holbert
9 wins-Mark Donohue, Bruce McLaren
7 wins-George Follmer, Michael Roe
6 wins-Alan Jones
5 wins-Jim Crawford, Jacky Ickx, Peter Revson
4 wins-Teo Fabi, Jackie Oliver, John Surtees, Al Unser Jr
3 wins-Geoff Brabham, Elliott Forbes-Robinson, Dan Gurney, Rick Miaskiewicz, Jacques Villeneuve Sr
2 wins-Peter Gethin, Horst Kroll, Keke Rosberg, Lou Sell, Jackie Stewart, Danny Sullivan
1 win-Don Breidenbach, Warwick Brown, John Cannon, Francois Cevert, Tony Dean, John Fitzpatrick, Phil Hill, Charlie Kemp, Tom Klausler, Bruce McInnes, Scooter Patrick, Bobby Rahal, Bill Tempero, Paul Tracy, Al Unser

Total winning drivers: 41

Winning nationalities

Australia-3 drivers (Brabham, Brown, Jones)
Belgium-1 driver (Ickx)
Canada-3 drivers (Cannon, Tracy, Villeneuve Sr)
Finland-1 driver (Rosberg)
France-2 drivers (Cevert, Tambay)
Great Britain-7 drivers (Crawford, Dean, Fitzpatrick, Gethin, Oliver, Stewart, Surtees)
Ireland-1 driver (Roe)
Italy-1 driver (Fabi)
New Zealand-2 drivers (Hulme, McLaren)
United States-20 drivers (Breidenbach, Donohue, Follmer, Forbes-Robinson, Gurney, Hill, Holbert, Kemp, Klausler, Kroll, McInnes, Miaskiewicz, Patrick, Rahal, Revson, Sell, Sullivan, Tempero, Unser, Unser Jr)

Total winning nationalities: 10

Winning manufacturers

43 wins-McLaren
30 wins-Lola
16 wins-Porsche
15 wins-Frissbee
12 wins-VDS
11 wins-March
8 wins-Lola
5 wins-CAC, Spyder
4 wins-Shadow
2 wins-Ensign, Prophet
1 win-Chaparral, Schkee

Total wins: 155 by 14 manufacturers

Winning engines

134 wins-Chevrolet
16 wins-Porsche
3 wins-Ford
2 wins-BMW

Total wins: 155 by 4 engine manufacturers