Aitor Osa

Aitor Osa Eizaguirre (born September 9, 1973) is a Spanish former road bicycle racer. He is an older brother of Unai Osa. He was involved in the Operación Puerto doping case.

Major results

 * 1996
 * 6th Overall Vuelta a La Rioja
 * 9th GP Villafranca de Ordizia


 * 1997
 * 4th Overall Vuelta a los Valles Mineros
 * 6th Subida al Naranco
 * 7th GP Villafranca de Ordizia


 * 1998
 * 3rd Subida al Naranco


 * 1999
 * 7th Overall Vuelta a Burgos
 * 7th Subida a Urkiola


 * 2000
 * 2nd Overall Vuelta a Castilla y León
 * 3rd Overall G.P. Portugal Telecom
 * 1st Stage 3
 * 6th Overall Tour of the Basque Country
 * 6th Klasika Primavera
 * 9th Overall Critérium International


 * 2001
 * 5th Subida al Naranco
 * 9th Overall Vuelta a España


 * 2002
 * 1st Jersey yellow.svg Overall Tour of the Basque Country
 * 1st Stage 3
 * 1st Jersey orange.svg Mountains classification, Vuelta a España
 * 1st Stage 2 Vuelta a La Rioja
 * 1st Stage 4 Volta a Portugal
 * 2nd Subida al Naranco
 * 3rd Overall Vuelta a Aragón
 * 5th Gran Premio Miguel Induráin


 * 2003
 * 2nd La Flèche Wallonne
 * 4th Klasika Primavera
 * 6th Overall Tour of the Basque Country


 * 2004
 * 1st Jersey polkadot.svg Mountains classification Paris–Nice
 * 5th Overall Vuelta a Andalucía
 * 6th Circuito de Getxo
 * 9th Overall Setmana Catalana de Ciclisme


 * 2005
 * 3rd Klasika Primavera
 * 4th Overall Tour of the Basque Country
 * 8th Overall Vuelta a Burgos
 * 8th La Flèche Wallonne


 * 2006
 * 7th Gran Premio Miguel Induráin