29 June 1958 - Monza 500 iscritti |
| No | pilota | teams | auto | motore(cc) |
| 1 | Jimmy Bryan | George Salih | Belond-AP Special | 4200 |
| 2 | Jack Fairman | Ecurie Ecosse | Lister Jaguar D-Type | 3800 |
| 4 | Masten Gregory | Ecurie Ecosse | Jaguar D-Type | 3442 |
| 5 | Jim Rathmann | John Zink | Zink Leader Card Special | 4200 |
| 6 | Ivor Bueb | Ecurie Ecosse | Jaguar D-Type | 3800 |
| 8 | Rodger Ward | Roger Walcott | Wolcott Fuel Injection Special | 4200 |
| 9 | Bob Veith | Robert M Bowes | Bowes Seal Fast Special | 4200 |
| 10 | Stirling Moss | Scuderia Eldorado | Eldorado-Italia | 4190 |
| 12 | Mike Hawthorn | Scuderia Ferrari | Ferrari | 4023 |
| 14 | Luigi Musso | Scuderia Ferrari | Ferrari | 2962 |
| 16 | Harry Schell | Luigi Chinetti | Ferrari-Chinetti | 2962 |
| 24 | Jimmy Reece | Fred Sommer | Hoyt Machine Special | 4200 |
| 26 | Don Freeland | Bob Estes | Bob Estes Special | 4200 |
| 29 | Juan Manuel Fangio | AE Dean | Dean Van Lines Special | 4200 |
| 35 | Eddie J Sachs Jr | Jim Robbins | Jim Robbins Special | 4200 |
| 49 | Ray Crawford | Ray Crawford | Maguire Mirror Glaze Special | 4200 |
| 55 | Maurice Trintignant | Sclavi Inc | Sclavi and Amos Special | 4200 |
| 75 | Johnny Thomson | Racing Associates | D-A Lubricant Special | 4200 |
| 98 | Troy Ruttman | JC Agajanian | Agajanian Special | 4200 |
| Qualifiche |
| Pos | No | pilota | |
| 1 | 12 | Luigi Musso | 281.077 kph (N.B. Musso qualifica Hawthorn) |
| 2 | 9 | Bob Veith | 278.857 |
| 3 | 19 | Juan Manuel Fangio | 275.841 |
| 4 | 35 | Eddie Sachs | 275.841 |
| 5 | 26 | Don Freeland | 275.180 |
| 6 | 1 | Jimmy Bryan | 275.014 |
| 7 | 5 | Jim Rathmann | 274.521 |
| 8 | 75 | Johnny Thomson | 268.682 |
| 9 | 8 | Rodger Ward | 268.635 |
| 10 | 98 | Troy Ruttman | 268.578 |
| 11 | 10 | Stirling Moss | 264.553 |
| 12 | 49 | Ray Crawford | 263.641 |
| 13 | 24 | Jimmy Reece | 263.188 |
| 14 | 14 | Phil Hill | 259.468 |
| 15 | 56 | Maurice Trintignant | 258.591 |
| 16 | 4 | Masten Gregory | 254.293 |
| 17 | 2 | Jack Fairman | 246.376 |
| 18 | 16 | Harry Schell | 245.586 |
| 19 | 6 | Ivor Bueb | 241.960 |
Heat 1 - Prix Esso (63 laps) |
| Pos | No | pilota | |
| 1 | 5 | Jim Rathmann | 59m40.9s, 269.178kph |
| 2 | 1 | Jimmy Bryan | 1h00m04.1s |
| 3 | 9 | Bob Veith | 1h00m26.4s |
| 4 | 10 | Stirling Moss | 1h00m35.1s |
| 5 | 75 | Johnny Thomson | 61 laps |
| 6 | 12 | Luigi Musso/Mike Hawthorn | 60 laps |
| 7 | 98 | Troy Ruttman | 60 laps |
| 8 | 24 | Jimmy Reece | 59 laps |
| 9 | 56 | Maurice Trintignant | 59 laps |
| 10 | 49 | Ray Crawford | 58 laps |
| 11 | 2 | Jack Fairman | 57 laps |
| 12 | 16 | Harry Schell | 56 laps |
| 13 | 4 | Masten Gregory | 55 laps |
| 14 | 6 | Ivor Bueb | 45 laps |
| R | 8 | Rodger Ward | 20 laps/torsion bar |
| R | 35 | Eddie Sachs | 20 laps/con-rod |
| R | 14 | Phil Hill | 17 laps/magneto/fuel line |
| R | 26 | Don Freeland | 17 laps/cam gear |
| DNS | 19 | Juan Manuel Fangio | changing cracked piston for second race |
| Heat 2 - Prix Mobil (63 laps) |
| Pos | No | Driver | Average |
| 1 | 5 | Jim Rathmann | 1h00m18.5s, 266.388kph |
| 2 | 9 | Bob Veith | 1h00m35.3s |
| 3 | 1 | Jimmy Bryan | 1h01m00.9s |
| 4 | 98 | Troy Ruttman | 1h01m02.2s |
| 5 | 10 | Stirling Moss | 62 laps |
| 6 | 56 | AJ Foyt | 61 laps (replaced Trintignant) |
| 7 | 24 | Jimmy Reece | 60 laps |
| 8 | 49 | Ray Crawford | 60 laps |
| 9 | 12 | Luigi Musso/Phil Hill | 60 laps |
| 10 | 2 | Jack Fairman | 57 laps |
| 11 | 6 | Ivor Bueb | 51 laps |
| R | 8 | Rodger Ward | 31 laps |
| R | 4 | Masten Gregory | rear body frame |
| R | 16 | Harry Schell | 12 laps/mechanicals |
| R | 75 | Johnny Thomson | 1 lap/crankshaft |
| R | 26 | Don Freeland | ? |
| DNS | 19 | Juan Manuel Fangio | changing cracked piston for third race |
| DNS | 35 | Eddie Sachs | |
| DNS | 14 | Phil Hill |
| Heat 3 - Prix Shell (63 laps) |
| Pos | No | Driver | Average |
| 1 | 5 | Jim Rathmann | 59m37.9s, 269.404kph |
| 2 | 1 | Jimmy Bryan | 1h00m04.6s |
| 3 | 12 | Mike Hawthorn/Phil Hill | 60 laps |
| 4 | 49 | Ray Crawford | 60 laps |
| 5 | 24 | Jimmy Reece | 59 laps |
| 6 | 6 | Ivor Bueb | 52 laps |
| R | 56 | AJ Foyt | 54 laps/crankshaft |
| R | 4 | Masten Gregory | 44 laps |
| R | 10 | Stirling Moss | 40 laps/accident |
| R | 9 | Bob Veith | 28 laps/wheel |
| R | 98 | Troy Ruttman | 12 laps/fuel line |
| R | 19 | Juan Manuel Fangio | 1 lap/fuel pump |
Aggregate result (189 laps) |
| Pos | No | pilota | |
| 1 | 5 | Jim Rathmann | 2h59m37.3, 189 laps, 166.72mph |
| 2 | 1 | Jimmy Bryan | 3h01m09.6, 189 laps |
| 3 | 12 | Mike Hawthorn/Luigi Musso/Phil Hill | 3h01m00.0, 180 laps |
| 4 | 49 | Ray Crawford | 3h01m26.4, 178 laps |
| 5 | 24 | Jimmy Reece | 3h01m50.2, 178 laps |
| 6 | 56 | AJ Foyt/Maurice Trintignant | 2h55m58.8, 174 laps |
| 7 | 10 | Stirling Moss | 2h40m59.2, 164 laps |
| 8 | 9 | Bob Veith | 2h27m23.0, 153 laps |
| 9 | 6 | Ivor Bueb | 3h01m25.8, 148 laps |
| 10 | 98 | Troy Ruttman | 2h13m07.9, 135 laps |
| 11 | 2 | Jack Fairman | 2h00m13.7, 114 laps |
| 12 | 4 | Masten Gregory | 2h00m11.1, 99 laps |
| 13 | 16 | Harry Schell | 1h18m33.2, 71 laps |
| 14 | 75 | Johnny Thomson | 1h05m25.8, 65 laps |
| 15 | 8 | Rodger Ward | 51 laps |
| 16 | 35 | Eddie Sachs | 20 laps |
| 17 | 26 | Don Freeland | 17 laps? |
| 18 | 14 | Phil Hill | 17 laps |
| 19 | 19 | Juan Manuel Fangio | 1 lap |