All available race results Efraín Chaparro
| Date | Race | Rank |
| Vuelta a Colombia | ||
| 12/01 | Stage 1 | 25 |
| 14/01 | Stage 3 | 16 |
Rider information for 1952
| Rank | 1678 |
| Score | 0 |
| Name | Efraín CHAPARRO |
| Country | Colombia |
| Team | Individual |
| Date | Race | Rank |
| Vuelta a Colombia | ||
| 07/06 | Stage 1 | 55 |
| 08/06 | Stage 2 | 49 |
| 09/06 | Stage 3 | 51 |
| 10/06 | Stage 4 | 32 |
| 13/06 | Stage 6 | 53 |
| 14/06 | Stage 7 | 50 |
| 15/06 | Stage 8 | 47 |
| 16/06 | Stage 9 | 50 |
| 17/06 | Stage 10 | 43 |
| 18/06 | Stage 11 | 48 |
| 19/06 | Stage 12 | 48 |
| 20/06 | Stage 13 | 43 |
| 22/06 | Stage 15 | 48 |
| 23/06 | Stage 16 | 34 |
| 24/06 | Stage 17 | 51 |
| 24/06 | General Classification | 47 |
Rider information for 1956
| Rank | 1886 |
| Score | 0 |
| Name | Efraín CHAPARRO |
| Country | Colombia |
| Team | Individual |