| GP of Monaco Monte Carlo 18-05-1958, 100 laps of 3.145 m, Total distance 314.500 m | |||||
| Pos | No | Driver | Team-engine | Diff | Reason |
| 1 | - | Maurice Trintignant | Cooper-Climax | 2:52:27.9 | - |
| 2 | - | Luigi Musso | Ferrari | -00:20.3 | - |
| 3 | - | Peter Collins | Ferrari | -00:42.7 | - |
| 4 | - | Jack Brabham | Cooper-Climax | -3 laps | - |
| 5 | - | Harry Schell | B.R.M. | -9 laps | - |
| 6 | - | Cliff Allison | Lotus-Climax | -10 laps | - |
| 7 | - | Wolfgang von Trips | Ferrari | 91 laps | Engine |
| 8 | - | Jo Bonnier | Maserati | 72 laps | Collision |
| 9 | 26 | Graham Hill | Lotus-Climax | 70 laps | Unknown |
| 10 | - | Roy Salvadori | Cooper-Climax | 56 laps | Gearbox |
| 11 | - | Mike Hawthorn | Ferrari | 46 laps | Fuel pump |
| 12 | - | Stirling Moss | Vanwall | 38 laps | Valve |
| 13 | - | Jean Behra | B.R.M. | 28 laps | Brakes |
| 14 | - | Giorgio Scarlatti | Maserati | 27 laps | Engine |
| 15 | - | Tony Brooks | Vanwall | 22 laps | Engine |
| 16 | - | Stuart Lewis-Evans | Vanwall | 12 laps | Overheating |
| 17 | - | Ron Flockhart | Cooper T43-Climax | DNQ | - |
| 18 | - | Francesco Godia | Maserati 250F | DNQ | - |
| 19 | - | Maria-Teresa de Filippis | Maserati 250F | DNQ | - |
| 20 | - | André Testut | Maserati 250F | DNQ | - |
| 21 | - | Louis Chiron | Maserati 250F | DNQ | - |
| 22 | - | Gerino Gerini | Maserati 250F | DNQ | - |
| 23 | - | Luigi Taramazzo | Maserati 250F | DNQ | - |
| 24 | - | Giulio Cabianca | OSCA F2 | DNQ | - |
| 25 | - | Luigi Piotti | OSCA F2 | DNQ | - |
| 26 | - | Paul Emery | Connaught B-Alta | DNQ | - |
| 27 | - | Bruce Kessler | Connaught B-Alta | DNQ | - |
| 28 | - | Bernie Ecclestone | Connaught B-Alta | DNQ | - |
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