All available race results Marcel Dupont
| Date | Race | Rank |
| 01/07 | Bruxelles - Luxembourg - Mondorf | 5 |
| Circuit de l'Ouest | ||
| 27/08 | General Classification | 8 |
Rider information for 1939
| Rank | 493 |
| Score | 45 |
| Name | Marcel DUPONT |
| Country | Belgium |
| Team | Individual |
No results available in season 1940.
Rider information for 1940
| Rank | 571 |
| Score | 0 |
| Name | Marcel DUPONT |
| Country | Belgium |
| Team | Alcyon - Dunlop |
| Date | Race | Rank |
| 29/06 | Ronde van Limburg | 16 |
Rider information for 1942
| Rank | 657 |
| Score | 0 |
| Name | Marcel DUPONT |
| Country | Belgium |
| Team | Jordens |
| Date | Race | Rank |
| 23/05 | La Flèche Wallonne | 15 |
Rider information for 1943
| Rank | 190 |
| Score | 82 |
| Name | Marcel DUPONT |
| Country | Belgium |
| Team | Jordens |
| Date | Race | Rank |
| 05/05 | Liège - Bastogne - Liège | 24 |
| Tour de Belgique | ||
| 18/05 | Stage 3 | 17 |
| 20/05 | Stage 4 | 18 |
| 21/05 | Stage 5 | 23 |
| 22/05 | Stage 6 | 11 |
| 24/05 | Stage 7 | 15 |
| 25/05 | Stage 8a | 13 |
| 25/05 | Stage 8b | 1 |
| Ronde de France | ||
| 10/07 | Stage 1 | 18 |
| 11/07 | Stage 2 | 16 |
| 13/07 | Stage 4 | 7 |
| 14/07 | General Classification | 11 |
| Tour de l'Ouest | ||
| 25/08 | General Classification | 4 |
Rider information for 1946
| Rank | 215 |
| Score | 171 |
| Name | Marcel DUPONT |
| Country | Belgium |
| Team | Alcyon - Dunlop |
| Date | Race | Rank |
| 20/04 | Liège - Bastogne - Liège | 13 |
| Tour de Belgique | ||
| 13/05 | Stage 1 | 55 |
| 14/05 | Stage 2 | 3 |
| 26/05 | Paris - Clermont-Ferrand | 5 |
| Tour de Luxembourg | ||
| 03/06 | Stage 3 | 5 |
| 07/06 | General Classification | 10 |
| G.P. Impanis | ||
| 28/07 | Stage 2 | 3 |
| G.P. des Routiers Prior | ||
| 10/08 | Stage 3 | 5 |
| 10/08 | General Classification | 24 |
| Tour de Suisse | ||
| 18/08 | Stage 3 | 6 |
| 23/08 | General Classification | 10 |
Rider information for 1947
| Rank | 133 |
| Score | 352 |
| Name | Marcel DUPONT |
| Country | Belgium |
| Team | Alcyon - Dunlop |
| Date | Race | Rank |
| 11/04 | Paris - Roubaix | 57 |
| 21/04 | La Flèche Wallonne | 12 |
| 25/04 | Paris - Tours | 11 |
| 18/06 | Championnat du Hainaut | 13 |
| Tour de France | ||
| 30/06 | Stage 1 | 20 |
| 01/07 | Stage 2 | 11 |
| 02/07 | Stage 3 | 21 |
| 03/07 | Stage 4 | 18 |
| 04/07 | Stage 5 | 28 |
| 05/07 | Stage 6 | 14 |
| 06/07 | Stage 7 | 36 |
| 08/07 | Stage 8 | 20 |
| 10/07 | Stage 9 | 8 |
| 11/07 | Stage 10 | 7 |
| 12/07 | Stage 11 | 12 |
| 13/07 | Stage 12 | 14 |
| 15/07 | Stage 13 | 32 |
| 16/07 | Stage 14 | 45 |
| 18/07 | Stage 15 | 15 |
| 19/07 | Stage 16 | 9 |
| 20/07 | Stage 17 | 29 |
| 21/07 | Stage 18 | 12 |
| 23/07 | Stage 19 | 18 |
| 24/07 | Stage 20 | 10 |
| 25/07 | Stage 21 | 10 |
| General Classification | 20 | |
| 22/08 | World Championships Road Race | 5 |
Rider information for 1948
| Rank | 38 |
| Score | 862 |
| Name | Marcel DUPONT |
| Country | Belgium |
| Team | Rochet - Dunlop |
| Date | Race | Rank |
| 15/03 | Nice - Mont Agel | 8 |
| 17/04 | Paris - Roubaix | 107 |
| 08/05 | G.P. de Wallonie | 4 |
| Tour de France | ||
| 30/06 | Stage 1 | 13 |
| 01/07 | Stage 2 | 14 |
| 02/07 | Stage 3 | 10 |
| 03/07 | Stage 4 | 23 |
| 04/07 | Stage 5 | 5 |
| 05/07 | Stage 6 | 37 |
| 07/07 | Stage 7 | 37 |
| 08/07 | Stage 8 | 16 |
| 09/07 | Stage 9 | 5 |
| 10/07 | Stage 10 | 13 |
| 12/07 | Stage 11 | 15 |
| 13/07 | Stage 12 | 23 |
| 14/07 | Stage 13 | 3 |
| 15/07 | Stage 14 | 10 |
| 16/07 | Stage 15 | 10 |
| 18/07 | Stage 16 | 15 |
| 19/07 | Stage 17 | 7 |
| 21/07 | Stage 18 | 15 |
| 22/07 | Stage 19 | 26 |
| 23/07 | Stage 20 | 9 |
| 24/07 | Stage 21 | 7 |
| General Classification | 5 |
Rider information for 1949
| Rank | 34 |
| Score | 984 |
| Name | Marcel DUPONT |
| Country | Belgium |
| Team | Rochet - Dunlop |
| Date | Race | Rank |
| 16/04 | Paris - Bruxelles | 69 |
| 23/04 | Liège - Bastogne - Liège | 55 |
| Tour de France | ||
| 13/07 | Stage 1 | 13 |
| 14/07 | Stage 2 | 27 |
| 15/07 | Stage 3 | 24 |
| 16/07 | Stage 4 | 72 |
| 17/07 | Stage 5 | 81 |
| 19/07 | Stage 6 | 67 |
| 20/07 | Stage 7 | 35 |
| 21/07 | Stage 8 | 11 |
| 22/07 | Stage 9 | 14 |
| 23/07 | Stage 10 | 10 |
| 25/07 | Stage 11 | 13 |
| 26/07 | Stage 12 | 7 |
| 27/07 | Stage 13 | 13 |
| 28/07 | Stage 14 | 13 |
| 29/07 | Stage 15 | 20 |
| 30/07 | Stage 16 | 28 |
| 01/08 | Stage 17 | 15 |
| 02/08 | Stage 18 | 17 |
| 03/08 | Stage 19 | 33 |
| 17/09 | G.P. des Nations | 8 |
Rider information for 1950
| Rank | 158 |
| Score | 383 |
| Name | Marcel DUPONT |
| Country | Belgium |
| Team | Colomb - Manera |
| Date | Race | Rank |
| Paris - Côte d'Azur | ||
| 15/03 | Stage 3 | 9 |
| 17/03 | General Classification | 20 |
| 08/04 | Paris - Roubaix | 19 |
| 21/04 | La Flèche Wallonne | 43 |
| 22/04 | Liège - Bastogne - Liège | 29 |
Rider information for 1951
| Rank | 244 |
| Score | 168 |
| Name | Marcel DUPONT |
| Country | Belgium |
| Team | Bartali - Ursus |
No results available in season 1953.
Rider information for 1953
| Rank | 1321 |
| Score | 0 |
| Name | Marcel DUPONT |
| Country | Belgium |
| Team | Welter - Ursus |