All available race results Aitor Osa Eizaguirre
| Date | Race | Rank |
| Volta Ciclista a Catalunya | ||
| 14/09 | General Classification | 22 |
Rider information for 1994
| Rank | 526 |
| Score | 41 |
| Name | Aitor OSA EIZAGUIRRE |
| Country | Spain |
| Team | Euskadi - Petronor |
| Date | Race | Rank |
| 19/03 | Cholet-Pays de la Loire | 38 |
| Critérium International | ||
| 26/03 | General Classification | 66 |
| Euskal Bizikleta | ||
| 11/06 | General Classification | 40 |
| Volta Ciclista a Catalunya | ||
| 22/06 | General Classification | 27 |
| Tour de l'Avenir | ||
| 11/09 | Stage 5 | 4 |
| 16/09 | General Classification | 61 |
Rider information for 1995
| Rank | 493 |
| Score | 48 |
| Name | Aitor OSA EIZAGUIRRE |
| Country | Spain |
| Team | Euskadi - Orbea |
| Date | Race | Rank |
| 25/02 | Trofeo Luis Puig | 42 |
| Critérium International | ||
| 30/03 | Stage 1 | 112 |
| 31/03 | Stage 2a | 33 |
| 31/03 | Stage 2b | 49 |
| 31/03 | General Classification | 30 |
| Euskal Bizikleta | ||
| 26/05 | General Classification | 21 |
| Volta Ciclista a Catalunya | ||
| 20/06 | General Classification | 37 |
| 23/06 | Campeonato de España en carretera | 26 |
| 25/07 | Prueba Villafranca-Ordiziako Klasika | 9 |
| 10/08 | Clasica San Sebastian | 50 |
| Vuelta a Galicia | ||
| 12/08 | Stage 1 | 17 |
| 16/08 | General Classification | 49 |
Rider information for 1996
| Rank | 485 |
| Score | 63 |
| Name | Aitor OSA EIZAGUIRRE |
| Country | Spain |
| Team | Euskadi |
| Date | Race | Rank |
| Critérium International | ||
| 30/03 | General Classification | 38 |
| G.P. du Midi-Libre | ||
| 27/05 | Stage 1 | 28 |
| Vuelta a los Valles Mineros | ||
| 02/06 | Stage 1 | 6 |
| 03/06 | Stage 2 | 8 |
| 04/06 | Stage 3 | 7 |
| 05/06 | General Classification | 4 |
| Volta Ciclista a Catalunya | ||
| 21/06 | Stage 3 | 19 |
| 25/06 | Stage 7 | 19 |
| 26/06 | General Classification | 23 |
| 25/07 | Prueba Villafranca-Ordiziako Klasika | 7 |
| Vuelta a España | ||
| 06/09 | Stage 1 | 43 |
| 07/09 | Stage 2 | 80 |
| 08/09 | Stage 3 | 85 |
| 09/09 | Stage 4 | 175 |
| 10/09 | Stage 5 | 73 |
| 11/09 | Stage 6 | 106 |
| 12/09 | Stage 7 | 75 |
| 14/09 | Stage 9 | 79 |
| 15/09 | Stage 10 | 68 |
| 16/09 | Stage 11 | 21 |
| 18/09 | Stage 12 | 44 |
| 19/09 | Stage 13 | 28 |
| 20/09 | Stage 14 | 20 |
| 21/09 | Stage 15 | 30 |
| 22/09 | Stage 16 | 51 |
| 23/09 | Stage 17 | 94 |
| 24/09 | Stage 18 | 50 |
| 25/09 | Stage 19 | 13 |
| 26/09 | Stage 20 | 20 |
| 28/09 | Stage 22 | 57 |
| General Classification | 46 |
Rider information for 1997
| Rank | 311 |
| Score | 155 |
| Name | Aitor OSA EIZAGUIRRE |
| Country | Spain |
| Team | Banesto |
| Date | Race | Rank |
| Paris - Nice | ||
| 10/03 | Stage 3 | 30 |
| 12/03 | Stage 5 | 27 |
| 13/03 | Stage 6 | 21 |
| 15/03 | General Classification | 31 |
| Critérium International | ||
| 29/03 | General Classification | 19 |
| 03/04 | Trofeo Comunidad Foral de Navarra | 28 |
| 12/04 | Klasika Primavera de Amorebieta | 12 |
| G.P. du Midi-Libre | ||
| 24/05 | General Classification | 68 |
| 25/07 | Prueba Villafranca-Ordiziako Klasika | 57 |
| Vuelta a Burgos | ||
| 14/08 | General Classification | 46 |
| Vuelta a España | ||
| 05/09 | Stage 1 | 46 |
| 06/09 | Stage 2 | 91 |
| 07/09 | Stage 3 | 46 |
| 08/09 | Stage 4 | 40 |
| 09/09 | Stage 5 | 38 |
| 10/09 | Stage 6 | 26 |
| 11/09 | Stage 7 | 83 |
| 12/09 | Stage 8 | 35 |
| 13/09 | Stage 9 | 113 |
| 13/09 | Stage 10 | 29 |
| 14/09 | Stage 11 | 26 |
| 15/09 | Stage 12 | 37 |
| 18/09 | Stage 13 | 54 |
| 19/09 | Stage 14 | 70 |
| 20/09 | Stage 15 | 36 |
| 21/09 | Stage 16 | 64 |
| 22/09 | Stage 17 | 66 |
| 23/09 | Stage 18 | 37 |
| 24/09 | Stage 19 | 39 |
| 25/09 | Stage 20 | 20 |
| 26/09 | Stage 21 | 63 |
| 27/09 | Stage 22 | 78 |
| General Classification | 22 |
Rider information for 1998
| Rank | 193 |
| Score | 309 |
| Name | Aitor OSA EIZAGUIRRE |
| Country | Spain |
| Team | Banesto |
Rider information for 1999
| Rank | 141 |
| Score | 460 |
| Name | Aitor OSA EIZAGUIRRE |
| Country | Spain |
| Team | Banesto |
Rider information for 2000
| Rank | 201 |
| Score | 374 |
| Name | Aitor OSA EIZAGUIRRE |
| Country | Spain |
| Team | Banesto |
| Date | Race | Rank |
| Volta a la Comunitat Valenciana | ||
| 03/03 | General Classification | 59 |
| Giro del Trentino | ||
| 03/05 | General Classification | 121 |
| G.P. du Midi-Libre | ||
| 27/05 | Stage 6 | 11 |
| 27/05 | General Classification | 14 |
| Euskal Bizikleta | ||
| 03/06 | General Classification | 30 |
| Volta Ciclista a Catalunya | ||
| 22/06 | Stage 2 | 24 |
| 23/06 | Stage 3 | 19 |
| 24/06 | Stage 4 | 15 |
| 25/06 | Stage 5 | 24 |
| 26/06 | Stage 6 | 18 |
| 27/06 | Stage 7 | 12 |
| 28/06 | Stage 8 | 15 |
| 28/06 | General Classification | 11 |
| 01/07 | Campeonato de España en carretera | 23 |
| Volta a Portugal | ||
| 13/08 | Stage 12 | 4 |
| Vuelta a España | ||
| 08/09 | Stage 1 | 107 |
| 09/09 | Stage 2 | 43 |
| 10/09 | Stage 3 | 38 |
| 11/09 | Stage 4 | 53 |
| 12/09 | Stage 5 | 11 |
| 13/09 | Stage 6 | 27 |
| 14/09 | Stage 7 | 29 |
| 15/09 | Stage 8 | 16 |
| 16/09 | Stage 9 | 23 |
| 18/09 | Stage 10 | 8 |
| 19/09 | Stage 11 | 5 |
| 20/09 | Stage 12 | 22 |
| 21/09 | Stage 13 | 34 |
| 22/09 | Stage 14 | 38 |
| 23/09 | Stage 15 | 10 |
| 25/09 | Stage 16 | 16 |
| 26/09 | Stage 17 | 18 |
| 27/09 | Stage 18 | 35 |
| 28/09 | Stage 19 | 17 |
| 29/09 | Stage 20 | 9 |
| 30/09 | Stage 21 | 35 |
| 30/09 | General Classification | 9 |
| 17/10 | Milano - Torino | 52 |
Rider information for 2001
| Rank | 117 |
| Score | 577 |
| Name | Aitor OSA EIZAGUIRRE |
| Country | Spain |
| Team | iBanesto.com |
| Date | Race | Rank |
| 04/02 | Trofeo Cala Ratjada - Cala Millor | 147 |
| Paris - Nice | ||
| 13/03 | Stage 3 | 3 |
| 14/03 | Stage 4 | 21 |
| 16/03 | Stage 6 | 15 |
| 17/03 | General Classification | 15 |
| 06/04 | G.P. Miguel Induráin | 5 |
| Vuelta al Pais Vasco | ||
| 08/04 | Stage 1 | 12 |
| 09/04 | Stage 2 | 24 |
| 10/04 | Stage 3 | 1 |
| 11/04 | Stage 4 | 7 |
| 12/04 | Stage 5 | 4 |
| 12/04 | Stage 5 | 10 |
| 12/04 | General Classification | 1 |
| G.P. du Midi-Libre | ||
| 23/05 | Stage 2 | 20 |
| 25/07 | Prueba Villafranca-Ordiziako Klasika | 31 |
| Volta a Portugal | ||
| 05/08 | Stage 4 | 1 |
| 10/08 | Stage 8 | 3 |
| Vuelta a España | ||
| 08/09 | Stage 2 | 13 |
| 09/09 | Stage 3 | 62 |
| 10/09 | Stage 4 | 65 |
| 11/09 | Stage 5 | 102 |
| 12/09 | Stage 6 | 57 |
| 13/09 | Stage 7 | 124 |
| 14/09 | Stage 8 | 65 |
| 15/09 | Stage 9 | 125 |
| 16/09 | Stage 10 | 133 |
| 18/09 | Stage 11 | 89 |
| 19/09 | Stage 12 | 117 |
| 20/09 | Stage 13 | 94 |
| 21/09 | Stage 14 | 128 |
| 22/09 | Stage 15 | 23 |
| 24/09 | Stage 16 | 4 |
| 25/09 | Stage 17 | 111 |
| 26/09 | Stage 18 | 84 |
| 27/09 | Stage 19 | 53 |
| 28/09 | Stage 20 | 102 |
| 29/09 | Stage 21 | 63 |
| 29/09 | General Classification | 54 |
| 16/10 | Milano - Torino | 138 |
Rider information for 2002
| Rank | 66 |
| Score | 826 |
| Name | Aitor OSA EIZAGUIRRE |
| Country | Spain |
| Team | iBanesto.com |
Rider information for 2003
| Rank | 67 |
| Score | 777 |
| Name | Aitor OSA EIZAGUIRRE |
| Country | Spain |
| Team | iBanesto.com |
Rider information for 2004
| Rank | 173 |
| Score | 409 |
| Name | Aitor OSA EIZAGUIRRE |
| Country | Spain |
| Team | Illes Balears - Banesto |
Rider information for 2005
| Rank | 80 |
| Score | 723 |
| Name | Aitor OSA EIZAGUIRRE |
| Country | Spain |
| Team | Illes Balears - Caisse d'Epargne |
| Date | Race | Rank |
| Paris - Nice | ||
| 06/03 | Stage 1 | 30 |
| 08/03 | Stage 3 | 21 |
| 09/03 | Stage 4 | 26 |
| 11/03 | Stage 6 | 29 |
| 12/03 | General Classification | 26 |
| 01/04 | G.P. Miguel Induráin | 7 |
| Vuelta al Pais Vasco | ||
| 03/04 | Stage 1 | 9 |
| 04/04 | Stage 2 | 9 |
| 05/04 | Stage 3 | 12 |
| Giro d'Italia | ||
| 27/05 | Stage 20 | 11 |
| 28/05 | Stage 21 | 70 |
| Euskal Bizikleta | ||
| 31/05 | Stage 1 | 89 |
| 01/06 | Stage 2 | 41 |
| 02/06 | Stage 3 | 27 |
| 03/06 | Stage 4a | 62 |
| 03/06 | Stage 4b | 59 |
| 04/06 | Stage 5 | 12 |
| General Classification | 20 |
Rider information for 2006
| Rank | 559 |
| Score | 89 |
| Name | Aitor OSA EIZAGUIRRE |
| Country | Spain |
| Team | Astana - Würth Team |