Pre-race sessions:
2 non-qualifying practice sessions held for a total of 240 minutes on 21-22/3
2 qualifying sessions held for a total of 270 minutes on 21-22/3
| Winners: |
| Overall: | 49 | Porsche 907 2.2 | Siffert / Herrmann |
| Sports Prototype (Group 6) - Class 9: | 72 | Lancia Fulvia HF | Pinto / Taramazzo / Maglioli |
| Production Sports (Group 4) - Classes 10÷12: | 30 | Ford GT40 | Piper / Nelson |
| Production Sports (Group 4) - Classes 6÷8: | 74 | MG Midget | Truitt / Canfield |
| Grand Touring - Class 13: | 3 | Chevrolet Corvette | Sharp / Morgan |
| Grand Touring - Classes 6÷9: | 59 | Porsche 911 S | Kirby / Johnson |
| Touring Trans-Am - class 12: | 15 | Chevrolet Camaro | Donohue / Fisher |
| Fastest Laps: |
| Overall: | 9 | Lola T70 Mk.3 GT Chevrolet | Scooter Patrick (USA) | 2:49.000 | 178.265 km/h | |
| Pole Positions: |
| Overall: | 49 | Porsche 907 2.2 | Hans Herrmann (D) | 2:49.400 | 177.845 km/h |
| Sports Prototype (Group 6) - Class 9: | 58 | Porsche 910 | Steinemann / Spoerry | 3:02.400 | |
| Production Sports (Group 4) - Classes 10÷12: | 28 | Ford GT40 | Ickx / Redman | 2:50.400 | |
| Production Sports (Group 4) - Class 9: | 64 | Porsche 906 | Bailey / Locke | 3:08.400 | |
| Production Sports (Group 4) - Classes 6÷8: | 68 | Lotus 47 | Sylvia / Domizi / Fogle | 3:26.800 | |
| Grand Touring - Class 13: | 2 | Chevrolet Corvette | Rodriguez / Yenko | 3:04.000 | |
| Grand Touring - Class 12: | 27 | Shelby GT350 | Kleinpeter / Hollander / Mummery | 3:29.800 | |
| Grand Touring - Class 10: | 86 | Triumph TR4A | Witt / Vega / Cameron | 3:46.600 | |
| Grand Touring - Classes 6÷9: | 59 | Porsche 911 S | Kirby / Johnson | 3:19.600 | |
| Touring Trans-Am - class 12: | 15 | Chevrolet Camaro | Donohue / Fisher | 3:01.200 | |
| Notes of interest: |
| Top makes by numbers: | Chevrolet (15), Porsche (13), Ford (11), MG (4), Triumph (4), Lola (4) |
| Top engines by numbers: | Chevrolet (20), Ford (15), Porsche (13), BMC (8), Rambler (3) |
| Top car types by numbers: | Chevrolet Camaro (10), Ford Mustang (8), Porsche 911 (5) |
| Driver nationalities: | USA (101), GB (10), CDN (7), D (6), I (5), CH (4), AUS (3), F (3), MEX (3), S (3) |
| Team nationalities: | USA (44), GB (8), D (5), CH (3), CDN (2), I (2), F (2) |
| Engine positions: | front-engined (61%), mid-engined (29%), rear-engined (10%) |
| Average engine size: | 3641 cc (1% turbine cars not counted) |
| Oldest known drivers: | Sepp Greger (54), Art Riley (53), Bob Johnson (41) |
| Youngest known drivers: | Liane Engeman (21), Jacky Ickx (23), Sam Posey (24) |
| Female drivers: | Liane Engeman, Janet Guthrie, Donna Mae Mims |