500 Miglia di Monza Heat 3
Autodromo Nazionale di Monza
2.64 Mile Paved Oval
63 Laps/166.32 Miles
June 29, 1957
| Finish | Start | Driver | Car # | Sponsor/Name | Chassis | Engine | Laps | Status |
Points |
| 1 | 2 | Troy Ruttman | 52 | John Zink | Watson | Offy | 63 | 1:03:01.2 158.399 | |
| 2 | 1 | Jimmy Bryan | 1 | Dean Van Lines | Kuzma | Offy | 63 | Finished | |
| 3 | 3 | Johnnie Parsons | 98 | Agajanian | Kuzma | Offy | 62 | Flagged | |
| 4 | 5 | Jack Fairman | 4 | Ecurie Ecosse | Jaguar | Jaguar | 60 | Flagged | |
| 5 | 6 | John Lawrence | 2 | Ecurie Ecosse | Jaguar | Jaguar | 57 | Flagged | |
| 6 | 7 | Ninian Sanderson | 6 | Ecurie Ecosse | Jaguar | Jaguar | 55 | Flagged | |
| 7 | 8 | Pat O'Connor | 12 | Sumar | Kurtis 500G | Offy | 9 | Split fuel tank | |
| 8 | 4 | Ray Crawford | 49 | Meguiar Mirror Glaze | Kurtis 500G | Offy | 1 | Out |
| Lap Leaders | Total | Laps |
| Jimmy Bryan | 67 | X |
| Troy Ruttman | 59 | X |
| Eddie Sachs | 33 | X |
| Pat O'Connor | 28 | X |
| Jack Fairman | 1 | X |
| Tony Bettenhausen | 1 | X |
| Lap leaders are combined from all 3 heats | ||