Info
| Last name | Sierra Aguerro |
| First name | Jose-Roberto |
| Nationality |  Spain |
| Date of birth | 21-03-1967 |
| Age | 58 |
| Place of birth | Camargo |
Monuments
| Date | Rank | Race | |||||
|---|---|---|---|---|---|---|---|
| 17-10 | 48 |  Giro di Lombardia (CDM) | |||||
| 23-08 | 61 |  Meisterschaft von Zürich (CDM) | |||||
 Tour de France (2.HC) | |||||||
| 15-07 | DNF | Stage 11Strasbourg - Mulhouse (249.0km) | |||||
| 14-07 | 133 | Stage 10Luxembourg - Strasbourg (217.0km) | |||||
| 13-07 | 63 | Stage 9Luxembourg - Luxembourg (65.0km) | |||||
| 12-07 | 81 | Stage 8Valkenburg - Koblenz (206.0km) | |||||
| 11-07 | 68 | Stage 7Brussel - Valkenburg (196.0km) | |||||
| 10-07 | 104 | Stage 6Roubaix - Brussel (167.0km) | |||||
| 09-07 | 163 | Stage 5Nogent-sur-Oise - Wasquehal (196.0km) | |||||
| 08-07 | 16 | Stage 4Libourne - Libourne (63.0km) | |||||
| 07-07 | 139 | Stage 3Pau - Bordeaux (210.0km) | |||||
| 06-07 | 46 | Stage 2San Sebastián - Pau (255.0km) | |||||
| 05-07 | 51 | Stage 1San Sebastián - San Sebastián (194.0km) | |||||
| 04-07 | 110 | PrologueSan Sebastián - San Sebastián (8.0km) | |||||
| 05-04 | 118 |  Ronde van Vlaanderen (CDM) | |||||
| 21-03 | 118 | Milano-Sanremo (CDM) | |||||
Teams
| Year | Team |
|---|---|
| 1999 | O.N.C.E. - Deutsche Bank |
| 1998 | O.N.C.E. |
| 1997 | O.N.C.E. |
| 1996 | O.N.C.E. |
| 1995 | O.N.C.E. |
| 1994 | O.N.C.E. |
| 1993 | Clas-Cajastur |
| 1992 | Clas-Cajastur |
| 1991 | Clas-Cajastur |
| 1990 | Teka |
| 1989 | Teka |
Victories
| This year | 0 |
| Total | 1 |