All available race results Marco Diem
| Date | Race | Rank |
| 05/09 | World Championships Road Race (Amateurs) | 15 |
| Tour de la Communauté Economique Européenne | ||
| 09/09 | Stage 2 | 11 |
Rider information for 1987
| Rank | 614 |
| Score | 40 |
| Name | Marco DIEM |
| Country | Switzerland |
| Team | Individual |
| Date | Race | Rank |
| Tour de Romandie | ||
| 11/05 | Stage 2 | 10 |
| 12/05 | Stage 3a | 9 |
| 14/05 | Stage 5 | 4 |
| 14/05 | General Classification | 62 |
| Dauphiné Libéré | ||
| 29/05 | Prologue | 23 |
| 30/05 | Stage 1 | 13 |
| 05/06 | General Classification | 89 |
| 20/08 | Meisterschaft von Zürich | 102 |
| Tour de Suisse | ||
| General Classification | 83 |
Rider information for 1989
| Rank | 468 |
| Score | 80 |
| Name | Marco DIEM |
| Country | Switzerland |
| Team | Domex - Weinmann |
| Date | Race | Rank |
| Vuelta a Murcia | ||
| 11/03 | General Classification | 82 |
| 06/05 | Grosser Preis des Kantons Aargau - Gippingen | 22 |
| Tour de Suisse | ||
| 19/06 | Stage 8 | 2 |
| 20/06 | Stage 9 | 2 |
| General Classification | 16 | |
| Kellogg's Tour of Britain | ||
| 05/08 | General Classification | 57 |
| 19/08 | Meisterschaft von Zürich | 107 |
| 16/10 | Milano - Torino | 42 |
| 18/10 | Giro del Piemonte | 16 |
Rider information for 1990
| Rank | 339 |
| Score | 140 |
| Name | Marco DIEM |
| Country | Switzerland |
| Team | Weinmann - SMM Uster |
| Date | Race | Rank |
| Dauphiné Libéré | ||
| 07/06 | Stage 5 | 4 |
| General Classification | 69 |
Rider information for 1991
| Rank | 617 |
| Score | 38 |
| Name | Marco DIEM |
| Country | Switzerland |
| Team | Mosoca - Chazal - Eurocar |
No results available in season 1992.
Rider information for 1992
| Rank | 1435 |
| Score | 0 |
| Name | Marco DIEM |
| Country | Switzerland |
| Team | La Nouvelle Chevaline |
No results available in season 1993.
Rider information for 1993
| Rank | 1437 |
| Score | 0 |
| Name | Marco DIEM |
| Country | Switzerland |
| Team | Southern Sun - M-Net |