| 1 |  South African Grand Prix 1968 | Kyalami | 1968-01-01 | Jim Clark | Lotus | Jim Clark | 80 | 328.320 | — | |
| 2 |  Gran Premio de España 1968 | Jarama | 1968-05-12 | Graham Hill | Lotus | Chris Amon | 90 | 306.360 | — | |
| 3 |  Grand Prix de Monaco 1968 | Monaco | 1968-05-26 | Graham Hill | Lotus | Graham Hill | 80 | 251.600 | — | |
| 4 |  1968 Belgian Grand Prix | Spa-Francorchamps | 1968-06-09 | Bruce McLaren | McLaren | Chris Amon | 28 | 394.800 | — | |
| 5 |  Grote Prijs van Nederland 1968 | Zandvoort | 1968-06-23 | Jackie Stewart | Matra | Chris Amon | 90 | 377.370 | — | |
| 6 |  Grand Prix de France 1968 | Rouen-Les-Essarts | 1968-07-07 | Jacky Ickx | Ferrari | Jochen Rindt | 60 | 392.520 | — | |
| 7 |  1968 RAC British Grand Prix | Brands Hatch | 1968-07-20 | Jo Siffert | Lotus | Graham Hill | 80 | 341.200 | — | |
| 8 |  Grosser Preis von Deutschland 1968 | Nürburgring | 1968-08-04 | Jackie Stewart | Matra | Jacky Ickx | 14 | 319.690 | — | |
| 9 |  Gran Premio d'Italia 1968 | Monza | 1968-09-08 | Denny Hulme | McLaren | John Surtees | 68 | 391.000 | — | |
| 10 |  Player's Canadian Grand Prix 1968 | Mont-Tremblant | 1968-09-22 | Denny Hulme | McLaren | Jochen Rindt | 90 | 383.850 | — | |
| 11 |  1968 United States Grand Prix | Watkins Glen | 1968-10-06 | Jackie Stewart | Matra | Mario Andretti | 108 | 408.240 | — | |
| 12 |  Gran Premio de México 1968 | Hermanos Rodríguez | 1968-11-03 | Graham Hill | Lotus | Jo Siffert | 65 | 325.000 | — | WDC WCC |