| Pos. | Driver | Entrant | Constructor | Time | Grid |
|---|---|---|---|---|---|
| 1 | Jo Siffert | Rob Walker Racing Team | Brabham-BRM | 1.17:05.2 | 3 |
| 2 | Jim Clark | Team Lotus | Lotus-Climax | + 0.3 s | 1 |
| 3 | Frank Gardner | John Willment Automobiles | Brabham-BRM | 59 laps | 6 |
| 4 | Denny Hulme | Brabham Racing Organisation | Brabham-Climax | 59 laps | 5 |
| 5 | Innes Ireland | Reg Parnell (Racing) | Lotus-BRM | 59 laps | 10 |
| 6 | Jack Brabham | Brabham Racing Organisation | Brabham-Climax | 58 laps | 8 |
| Ret | Chris Amon | Reg Parnell (Racing) | Lotus-BRM | Holed radiator | 4 |
| Ret | John Rhodes | Gerard Racing | Cooper-Climax | Handling | 12 |
| Ret | Giampiero Biscaldi | Scuderia Centro Sud | BRM | Oil pressure | 15 |
| Ret | Mike Spence | Team Lotus | Lotus-Climax | Accident | 2 |
| Ret | Jo Bonnier | Rob Walker Racing Team | Brabham-Climax | Oil pressure | 7 |
| Ret | Alan Rees | Roy Winkelmann Racing | Brabham-Ford | Piston | 9 |
| Ret | Jochen Rindt | Roy Winkelmann Racing | Brabham-Ford | Driveshaft joint | 11 |
| DSQ | Masten Gregory | Scuderia Centro Sud | BRM | Changed drivers | 13 |
| Ret | Giancarlo Baghetti | Scuderia Centro Sud | BRM | Holed radiator | 14 |
| DNQ | Piers Courage | Gerard Racing | Cooper-Ford | - | |
| DNQ | Colin Davis | Scuderia Nord-Ouest | Lotus-Climax | - | |
| WD | Bob Anderson | DW Racing Enterprises | Brabham-Climax | Car damaged | - |
| WD | Paul Hawkins | DW Racing Enterprises | Lotus-Climax | - | |
| WD | Brian Gubby | Brian Gubby | Lotus-Climax | - |
Date: 15 August 1965
Official Name: IV Gran Premio del Mediterraneo
Circuit: Autodromo di Pergusa
Location: Sicily
Circuit Length: 4.803 km
Number of Laps: 60
Race Distance: 288.172 km
Pole Position: Jim Clark, Lotus-Climax, 1:15.8
Fastest Lap: Jim Clark, Lotus-Climax, 1:15.8