| Pos. | No. | Driver / Nationality | Car | Entrant | Laps | Time/retired | Grp Pos | Group | Grid | Qual Time |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 1 | Arturo Merzario (I) | Alfa Romeo 33SC12 | Autodelta SpA | 89 | 2:30:56,680 | 1. | S3.0 | 1. | 1:38,43 |
| 2. | 2 | Vittorio Brambilla (I) | Alfa Romeo 33SC12 | Autodelta SpA | 89 | 2:03:56,790 | 2. | S3.0 | 2. | 1:38,77 |
| 3. | 3 | Giorgio Francia (I)
Spartaco Dini (I) |
Alfa Romeo 33SC12 | Autodelta SpA | 86 | 3. | S3.0 | 3. | 1:38,83 | |
| 4. | 8 | Chris Craft (GB) | Lola T296 Ford | Lola Cars | 84 | 1. | S2.0 | 4. | 1:43,95 | |
| 5. | 7 | Eugen Strähl (CH)
Peter Bernhard (CH) |
Sauber C5 BMW 002 | Fancy Racing | 82 | 2. | S2.0 | 5. | 1:44,67 | |
| 6. | 5 | Ian Bracey (GB)
Tony Birchenhough (GB) |
Lola T294S Ford | Dorset Racing | 72 | 3. | S2.0 | 8. | 2:07,85 | |
| NC | 6 | Martin Birrane (IRL)
Peter Clark (GB) |
Lola T294S Ford HU22 | Dorset Racing | 52 | S2.0 | 6. | 1:57,28 | ||
| DNF | 9 | Orlando Gonçalves (P) | Bravo BR77 Ford GRD S73-071 | O. Concalves | 10 | S2.0 | 7. | 1:58,88 | ||
| DNQ | "Sídio Viana" (P) | GRD S73 Ford 072 | S2.0 | 9. |
| Winning Time: 2h30m56.68, 95.623 mph/153.891 kph |
| Fastest Lap: Vittorio Brambilla #2 (Alfa Romeo 33SC12), 1m37.73, 99.567 mph/160.237 kph |
| * Driver entered for car, but never drove it at meeting |
| ^ Driver practiced car, but did not race it |
| RES - Reserve (Practiced, on standy-by for start) |
| REE - Reserve Entry |
| DNA - Did Not Arrive |
| DNS - Did Not Start |
| DNF - Did Not Finish |
| DNP - Did Not Practice |
| NC - Not Classified |
| DSQ - Disqualified |
| NRF - Not Running At Finish |
| NAC - Not Accepted |
| REJ - Rejected (Did not pass scrutineering) |