Most grandtour starts by competitors
Number of starts in grand tours before the start of GP de Sintra 1990.
| Pos. | Rider | Starts | Tour | Giro | Vuelta |
|---|---|---|---|---|---|
| 1 | BLANCO Jesús | 12 | 3 | 1 | 8 |
| 2 | CHAGAS Marco António Martins | 3 | 2 | - | 1 |
| 3 | FERNANDES Venceslau Domingues | 3 | - | - | 3 |
| 4 | CUNHA Manuel | 3 | - | - | 3 |
| 5 | GOMES Joaquim Augusto | 3 | - | - | 3 |
| 6 | SILVA Jorge Manuel | 3 | - | - | 3 |
| 7 | FREITAS Cássio | 1 | - | - | 1 |
| 8 | PINHO Carlos Manuel | 0 | - | - | - |
| 9 | DE JESUS PEREIRA Carlos Manuel | 0 | - | - | - |
| 10 | DULAS Andrzej | 0 | - | - | - |