Most grandtour starts by competitors
Number of starts in grand tours before the start of Euskal Bizikleta 1957.
| Pos. | Rider | Starts | Tour | Giro | Vuelta |
|---|---|---|---|---|---|
| 1 | RODRÍGUEZ Manuel | 7 | 2 | - | 5 |
| 2 | VIDAURRETA Hortensio | 6 | 1 | 1 | 4 |
| 3 | COMPANY Gabriel | 5 | 1 | 1 | 3 |
| 4 | MORALES Carmelo | 5 | 2 | - | 3 |
| 5 | BRULÉ André | 4 | 3 | 1 | - |
| 6 | MARIGIL René | 4 | 1 | - | 3 |
| 7 | MORENO Francisco | 3 | - | - | 3 |
| 8 | BIBILONI Juan | 3 | - | - | 3 |
| 9 | ESCOLÀ Juan | 3 | - | 1 | 2 |
| 10 | BARBOSA Antonio da Silva Alves | 2 | 1 | - | 1 |
| 11 | PONZINI Renato | 2 | - | 2 | - |
| 12 | VIDAURRETA Miguel | 2 | - | - | 2 |
| 13 | BARRUTIA Antonio | 2 | - | - | 2 |
| 14 | CRUZ Adolfo | 2 | - | - | 2 |
| 15 | CAMPILLO Juan | 2 | - | - | 2 |
| 16 | ALBERDI Felipe | 1 | - | - | 1 |
| 17 | MICHELENA José | 1 | - | - | 1 |
| 18 | ZABALETA Facundo | 1 | - | - | 1 |
| 19 | OTAÑO Luis | 0 | - | - | - |
| 20 | IZA Fausto | 0 | - | - | - |