All available race results Piet Hoekstra
| Date | Race | Rank |
| 15/03 | Ster van Zwolle | 2 |
| Tour de l'Avenir | ||
| 12/09 | Stage 1a | 8 |
| 13/09 | Stage 2 | 7 |
| 15/09 | Stage 4 | 1 |
Rider information for 1969
| Rank | 586 |
| Score | 23 |
| Name | Piet HOEKSTRA |
| Country | Netherlands |
| Team | Individual |
| Date | Race | Rank |
| 01/05 | Grote 1 Mei-Prijs Hoboken | 7 |
Rider information for 1970
| Rank | 734 |
| Score | 7 |
| Name | Piet HOEKSTRA |
| Country | Netherlands |
| Team | Caballero - Laurens |
| Date | Race | Rank |
| Vuelta a Andalucia - Ruta del Sol | ||
| 20/02 | Stage 5 | 2 |
| 14/03 | Elfstedenronde | 8 |
| 4 Jours de Dunkerque | ||
| 09/05 | General Classification | 56 |
Rider information for 1971
| Rank | 396 |
| Score | 53 |
| Name | Piet HOEKSTRA |
| Country | Netherlands |
| Team | Gazelle Cycles |
No results available in season 1972.
Rider information for 1972
| Rank | 989 |
| Score | 0 |
| Name | Piet HOEKSTRA |
| Country | Netherlands |
| Team | Novy - Dubble Bubble |
| Date | Race | Rank |
| 08/03 | Ster van Zwolle | 4 |
Rider information for 1975
| Rank | 1238 |
| Score | 0 |
| Name | Piet HOEKSTRA |
| Country | Netherlands |
| Team | Individual |
| Date | Race | Rank |
| 06/03 | Ster van Zwolle | 1 |
Rider information for 1976
| Rank | 757 |
| Score | 5 |
| Name | Piet HOEKSTRA |
| Country | Netherlands |
| Team | Individual |
| Date | Race | Rank |
| 12/03 | Ster van Zwolle | 6 |
Rider information for 1977
| Rank | 1245 |
| Score | 0 |
| Name | Piet HOEKSTRA |
| Country | Netherlands |
| Team | Individual |