Juan Carlos Alonso Deteano
| Name: | Juan Carlos |
| Family name: | Alonso Deteano |
| Nationality: | Spain |
| Age: | 67 years |
| Date of birth: | March 8, 1958 |
| Place of birth: | Durango (Pais Vasco), Spain |
| Participations: | 1 |
| Teams: |
1980 System 1 |
Results
1980 | System 1
| 24° in | Prologue | - | 8 km | (ESP) |
| 16° in | Stage 1 | - | 155 km | (ESP) |
| 53° in | Stage 2 | - | 170 km | (ESP) |
| 38° in | Stage 3 | - | 207 km | (ESP) |
| 102° in | Stage 4 | - | 214 km | (ESP) |
| 19° in | Stage 5 | - | 200 km | (ESP) |
| 37° in | Stage 6 | - | 131 km | (ESP) |
| 37° in | Stage 7 | - | 216 km | (ESP) |
| 74° in | Stage 8 | - | 160 km | (ESP) |
| 78° in | Stage 9 | - | 138 km | (ESP) |
| 22° in | Stage 10 | - | 178 km | (ESP) |
| 41° in | Stage 11 | - | 219 km | (ESP) |
| 93° in | Stage 12 | - | 133 km | (ESP) |
| 66° in | Stage 13 | - | 195 km | (ESP) |
