| Pos. | Driver | Entrant | Constructor | Time | Grid |
|---|---|---|---|---|---|
| 1 | Jo Siffert | Siffert Racing Team | Brabham-BRM | 1.17:59.3 | 1 |
| 2 | Jim Clark | Team Lotus | Lotus-Climax | + 0.1 | 3 |
| 3 | Innes Ireland | British Racing Partnership | BRP-BRM | + 2.1 | 4 |
| 4 | Chris Amon | Reg Parnell Racing | Lotus-BRM | 59 laps | 6 |
| 5 | Mike Spence | Team Lotus | Lotus-Climax | 58 laps | 5 |
| 6 | Peter Revson | Revson Racing (America) | Lotus-BRM | 58 laps | 9 |
| 7 | John Taylor | Gerard Racing | Cooper-Climax | 57 laps | 11 |
| 8 | André Pilette | Equipe Scirocco Belge | Scirocco-Climax | 54 laps | 14 |
| 9 | Jackie Epstein | Epstein-Eyre Racing Team | BRM | 50 laps | 15 |
| Ret | Frank Gardner | John Willment Automobiles | Brabham-Ford | Piston | 13 |
| Ret | Trevor Taylor | British Racing Partnership | BRP-BRM | Radius arm | 2 |
| Ret | Paul Hawkins | John Willment Automobiles | Lola-Cosworth | Gearbox | 12 |
| Ret | Luigi Malanca | Luigi Malanca | Lotus-Ford | Oil pressure | 16 |
| Ret | Mike Hailwood | Reg Parnell Racing | Lotus-BRM | Accident | 7 |
| DNS | Brian Gubby | Brian Gubby | Lotus-Climax | Practice accident | (8) |
| DNS | Jean-Claude Rudaz | Fabre Urbain | Cooper-Climax | Engine in practice | (10) |
| WD | Bob Anderson | DW Racing Enterprises | Brabham-Climax | - | |
| WD | Giacomo Russo | Scuderia Sorocaima | Lotus | No car | - |
| WD | Ian Raby | Ian Raby (Racing) | Brabham-BRM | - |
Date: 16 August 1964
Official Name: III 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: Jo Siffert, Brabham-BRM, 1:17.1
Fastest Lap: Mike Spence, Lotus-Climax, 1:16.0