Most grandtour starts by competitors
Number of starts in grand tours before the start of Giro d'Italia 1966.
| Pos. | Rider | Starts | Tour | Giro | Vuelta |
|---|---|---|---|---|---|
| 1 | STABLINSKI Jean | 15 | 9 | 3 | 3 |
| 2 | ANQUETIL Jacques | 13 | 7 | 4 | 2 |
| 3 | PAMBIANCO Arnaldo | 12 | 4 | 8 | - |
| 4 | BATTISTINI Graziano | 11 | 4 | 7 | - |
| 5 | EVERAERT Pierre | 10 | 7 | 2 | 1 |
| 6 | GRACZYK Jean | 10 | 7 | 1 | 2 |
| 7 | MINIERI Mario | 10 | 4 | 6 | - |
| 8 | MASSIGNAN Imerio | 9 | 3 | 6 | - |
| 9 | SARTORE Giuseppe | 9 | 2 | 6 | 1 |
| 10 | RONCHINI Diego | 9 | 2 | 7 | - |
| 11 | NOVAK Anatole | 8 | 5 | 1 | 2 |
| 12 | ADORNI Vittorio | 8 | 3 | 5 | - |
| 13 | FONTONA Renzo | 8 | 3 | 5 | - |
| 14 | JIMÉNEZ Julio | 7 | 2 | - | 5 |
| 15 | BAILETTI Antonio | 7 | 2 | 5 | - |
| 16 | FORNONI Giacomo | 7 | 2 | 5 | - |
| 17 | THIÉLIN Gérard | 7 | 4 | - | 3 |
| 18 | MILESI Jean | 7 | 6 | 1 | - |
| 19 | BARIVIERA Vendramino | 6 | 1 | 5 | - |
| 20 | FONTANA Marino | 6 | - | 6 | - |