All available race results Guillaume Mercader
| Date | Race | Rank |
| 14/04 | Paris - Caen | 29 |
| Circuit de l'Ouest | ||
| 25/08 | Stage 1 | 53 |
Rider information for 1935
| Rank | 1323 |
| Score | 0 |
| Name | Guillaume MERCADER |
| Country | France |
| Team | La Perle - Hutchinson |
| Date | Race | Rank |
| 14/04 | Paris - Camembert | 18 |
| 21/05 | Circuit de Paris | 57 |
| Circuit de l'Ouest | ||
| 23/08 | Stage 1 | 53 |
| 24/08 | Stage 2 | 53 |
| 25/08 | Stage 3a | 46 |
| 25/08 | Stage 3c | 36 |
| 26/08 | Stage 4 | 49 |
Rider information for 1936
| Rank | 694 |
| Score | 24 |
| Name | Guillaume MERCADER |
| Country | France |
| Team | La Perle - Hutchinson |
| Date | Race | Rank |
| 30/03 | Paris - Camembert | 24 |
Rider information for 1937
| Rank | 1185 |
| Score | 0 |
| Name | Guillaume MERCADER |
| Country | France |
| Team | Individual |
No results available in season 1938.
Rider information for 1938
| Rank | 1104 |
| Score | 1 |
| Name | Guillaume MERCADER |
| Country | France |
| Team | Individual |
No results available in season 1947.
Rider information for 1947
| Rank | 1271 |
| Score | 0 |
| Name | Guillaume MERCADER |
| Country | France |
| Team | La Perle - Hutchinson |