All races
All races where Erba was either departure or arrival city, or a location on the route.
| # | Date | Race |
|---|---|---|
| 1 | 2006-07-09 | Giro d'Italia Femminile | Stage 10 |
| 2 | 1986-05-27 | Giro d'Italia | Stage 16 |
| 3 | 1986-05-26 | Giro d'Italia | Stage 15 |
| 4 | 1952-06-01 | Giro d'Italia | Stage 14 (ITT) |