Info
| Last name | Siboni |
| First name | Marcello |
| Nationality |  Italy |
| Date of birth | 06-01-1965 |
| Age | 60 |
Monuments
| Date | Rank | Race | |||||
|---|---|---|---|---|---|---|---|
| 02-08 | 5 | Trofeo Matteotti (1.2) | |||||
| 28-06 | 6 | National Road Championships - Italy (CN) | |||||
 Tour de Suisse (2.1) | |||||||
| 21 |  Standings | ||||||
| 26-06 | Stage 10Laax - Zürich (170.0km) | ||||||
| 21-03 | 57 | Milano-Sanremo (CDM) | |||||
| Tirreno-Adriatico (2.1) | |||||||
| 16 | Standings | ||||||
| 18-03 | Stage 6San Benedetto del Tronto - San Benedetto del Tronto (14.0km) | ||||||
| Settimana Ciclistica Internazionale (2.2) | |||||||
| 25-02 | Stage 6Castellamare del Golfo - Palermo (158.0km) | ||||||
Teams
Victories
| This year | 0 |
| Total | 0 |