Most grandtour starts by competitors
Number of starts in grand tours before the start of Vuelta a Castilla 1951.
| Pos. | Rider | Starts | Tour | Giro | Vuelta |
|---|---|---|---|---|---|
| 1 | RODRÍGUEZ Emilio | 7 | 2 | - | 5 |
| 2 | RUIZ Bernardo | 6 | 2 | - | 4 |
| 3 | DREI Umberto | 6 | 1 | 4 | 1 |
| 4 | CAPÓ Bernardo | 5 | 1 | - | 4 |
| 5 | SERRA José | 4 | 2 | - | 2 |
| 6 | GUAL Miguel | 4 | 1 | - | 3 |
| 7 | FANTI Franco | 3 | - | 3 | - |
| 8 | RODRÍGUEZ Manuel | 3 | 1 | - | 2 |
| 9 | GELABERT Antonio | 3 | - | - | 3 |
| 10 | RIVOLA Dante | 2 | - | 2 | - |
| 11 | AGUIRREZABAL Julián | 2 | - | - | 2 |
| 12 | CATALÁ Enrique | 1 | - | - | 1 |
| 13 | SAN EMETERIO Julián | 1 | - | - | 1 |
| 14 | NAVARRO Luis | 1 | - | - | 1 |
| 15 | BRUNA Ángel | 1 | - | - | 1 |
| 16 | TROBAT Andrés | 1 | - | - | 1 |
| 17 | POBLET Miguel | 0 | - | - | - |
| 18 | GARCÍA Victorio | 0 | - | - | - |
| 19 | GUZMÁN Pedro | 0 | - | - | - |
| 20 | ELGUEZABAL Óscar | 0 | - | - | - |