| Name: | Aitor |
| Family name: | Osa Eizaguirre |
| Nationality: | Spain |
| Age: | 52 years |
| Date of birth: | September 9, 1973 |
| Place of birth: | Zestoa (Pais Vasco), Spain |
| Participations: | 4 |
| Teams: |
2001 System 1 2002 System 1 2003 System 1 2005 Illes Balears - Caisse d'Epargne |
| 107° in | Stage 1 | - | 12,3 km | (ESP) |
| 22° in | Stage 2 | - | 147,2 km | (ESP) |
| 38° in | Stage 3 | - | 140,5 km | (ESP) |
| 53° in | Stage 4 | - | 175 km | (ESP) |
| 11° in | Stage 5 | - | 160,8 km | (ESP) |
| 27° in | Stage 6 | - | 180,6 km | (ESP) |
| 16° in | Stage 8 | - | 195 km | (ESP) |
| 8° in | Stage 10 | - | 168,4 km | (ESP) |
| 5° in | Stage 11 | - | 154,2 km | (ESP) |
| 10° in | Stage 15 | - | 207 km | (ESP) |
| 16° in | Stage 16 | - | 153 km | (ESP) |
| 18° in | Stage 17 | - | 160 km | (ESP) |
| 17° in | Stage 19 | - | 168 km | (ESP) |
| 9° in | Stage 20 | - | 176 km | (ESP) |
| 9° in | General Classification | - | (ESP) |
| 13° in | Stage 2 | - | 144,7 km | (ESP) |
| 62° in | Stage 3 | - | 134,2 km | (ESP) |
| 65° in | Stage 4 | - | 149,5 km | (ESP) |
| 102° in | Stage 5 | - | 198 km | (ESP) |
| 57° in | Stage 6 | - | 153,1 km | (ESP) |
| 124° in | Stage 7 | - | 196,8 km | (ESP) |
| 65° in | Stage 8 | - | 173,6 km | (ESP) |
| 125° in | Stage 9 | - | (ESP) | |
| 133° in | Stage 10 | - | 36,5 km | (ESP) |
| 89° in | Stage 11 | - | 166,1 km | (ESP) |
| 117° in | Stage 12 | - | 210,5 km | (ESP) |
| 94° in | Stage 13 | - | 189,8 km | (ESP) |
| 128° in | Stage 14 | - | 190,2 km | (ESP) |
| 23° in | Stage 15 | - | 176,7 km | (ESP) |
| 4° in | Stage 16 | - | 154,7 km | (ESP) |
| 111° in | Stage 17 | - | 145,6 km | (ESP) |
| 84° in | Stage 18 | - | 193,7 km | (ESP) |
| 53° in | Stage 19 | - | 177,8 km | (ESP) |
| 102° in | Stage 20 | - | 141,2 km | (ESP) |
| 54° in | General Classification | - | (ESP) | |
| 1° in | Mountains classification | - | (ESP) | |
| 63° in | Stage 21 | - | 41,2 km | (ESP) |
| 24° in | Stage 1 | - | 28 km | (ESP) |
| 14° in | Stage 2 | - | 148 km | (ESP) |
| 30° in | Stage 3 | - | 154,3 km | (ESP) |
| 38° in | Stage 4 | - | 151 km | (ESP) |
| 33° in | Stage 5 | - | 166,7 km | (ESP) |
| 31° in | Stage 6 | - | 43,8 km | (ESP) |
| 46° in | Stage 7 | - | 190 km | (ESP) |
| 2° in | Stage 8 | - | 166 km | (ESP) |
| 139° in | Stage 9 | - | 174,8 km | (ESP) |
| 41° in | Stage 10 | - | 194 km | (ESP) |
| 54° in | Stage 11 | - | 162 km | (ESP) |
| 50° in | Stage 12 | - | 168,8 km | (ESP) |
| 117° in | Stage 13 | - | 53,3 km | (ESP) |
| 99° in | Stage 14 | - | 167,4 km | (ESP) |
| 18° in | Stage 15 | - | 172,1 km | (ESP) |
| 34° in | Stage 16 | - | 162 km | (ESP) |
| 35° in | Stage 17 | - | 188,4 km | (ESP) |
| 27° in | Stage 18 | - | 164 km | (ESP) |
| 19° in | Stage 19 | - | 164 km | (ESP) |
| 14° in | Stage 20 | - | 11,2 km | (ESP) |
| 92° in | Stage 21 | - | 145,9 km | (ESP) |
| 25° in | General Classification | - | (ESP) | |
| 2° in | Mountains classification | - | (ESP) |
| 59° in | Stage 1 | - | 7 km | (ESP) |
| 80° in | Stage 2 | - | 189,3 km | (ESP) |
| 69° in | Stage 3 | - | 153,3 km | (ESP) |
| 97° in | Stage 4 | - | 232,3 km | (ESP) |
| 22° in | Stage 5 | - | 176 km | (ESP) |
| 35° in | Stage 6 | - | 217 km | (ESP) |
| 55° in | Stage 7 | - | 212,5 km | (ESP) |
| 34° in | Stage 8 | - | 189 km | (ESP) |
| 82° in | Stage 9 | - | 48 km | (ESP) |
| 23° in | Stage 11 | - | 192,2 km | (ESP) |