| 1.5 cc E-1 | ||||||
| Pos | Name | FEMA | Nation | Heat 1 | Heat 2 | Final |
| 1 | Gianni Mattea | 666 | I | 242,777 | – | 242,777 |
| 2 | Claudio Griffanti | 818 | I | 234,754 | 228,569 | 234,754 |
| Claudio Griffanti | 1131 | I | – | – | – |
| 2.5 cc E-2 | ||||||
| 1 | Gualtiero Picco | 631 | I | 267,718 | 266,742 | 267,718 |
| 2 | Claudio Griffanti | 704 | I | 254,831 | 259,954 | 259,954 |
| 3 | Aldo Valentini | 821 | I | 245,385 | 249,695 | 249,695 |
| 5 cc E-4 | ||||||
| 1 | Alberto Adreani | 561 | I | 290,576 | – | 290,576 |
| 2 | Donato Magnoni | 472 | I | 288,878 | – | 288,878 |
| 3 | Gianni Mattea | 440 | I | 278,526 | 271,285 | 278,526 |
| 4 | Aldo Valentini | 384 | I | 278,065 | 275,495 | 278,065 |
| 5 | Giorgio Melocchi | 967 | I | 266,186 | 258,035 | 266,186 |
| 6 | Piero Bettetini | 182 | I | 252,781 | – | 252,781 |
| Aldo Valentini | 373 | I | 261,309 | – | – |
| 10 cc E-5 | ||||||
| 1 | Gualtiero Picco | 681 | I | 325,409 | – | 325,409 |
| 2 | Carlo Griffanti | 705 | I | 308,393 | – | 308,393 |
| 3 | Marino Vavassori | 1001 | I | 304,095 | 293,528 | 304,095 |
| 4 | Carlo Saudella | 570 | I | 268,2 | – | 268,2 |