Most grandtour starts by competitors
Number of starts in grand tours before the start of Tour de France 1966.
| Pos. | Rider | Starts | Tour | Giro | Vuelta |
|---|---|---|---|---|---|
| 1 | SORGELOOS Edgard | 17 | 5 | 7 | 5 |
| 2 | STABLINSKI Jean | 16 | 9 | 4 | 3 |
| 3 | DARRIGADE André | 15 | 13 | 2 | - |
| 4 | VAN LOOY Rik | 14 | 4 | 6 | 4 |
| 5 | ANQUETIL Jacques | 14 | 7 | 5 | 2 |
| 6 | OTAÑO Luis | 14 | 8 | - | 6 |
| 7 | CARLESI Guido | 13 | 3 | 9 | 1 |
| 8 | DESMET Armand | 12 | 7 | 2 | 3 |
| 9 | EVERAERT Pierre | 11 | 7 | 3 | 1 |
| 10 | ROSTOLLAN Louis | 10 | 7 | 3 | - |
| 11 | GELDERMANS Albertus | 9 | 6 | 1 | 2 |
| 12 | NOVAK Anatole | 9 | 5 | 2 | 2 |
| 13 | GÓMEZ Antonio | 9 | 2 | 1 | 6 |
| 14 | CAZALA Robert | 9 | 7 | - | 2 |
| 15 | GABICA Francisco | 9 | 3 | - | 6 |
| 16 | VÉLEZ Eusebio | 9 | 3 | - | 6 |
| 17 | VANNITSEN Willy | 8 | 3 | 5 | - |
| 18 | MOLENAERS Yvo | 8 | 4 | 4 | - |
| 19 | DELBERGHE Edouard | 8 | 5 | 3 | - |
| 20 | FORNONI Giacomo | 8 | 2 | 6 | - |