2002 Signs for the Yamaha D'Antin team, but is forced to retire before the season starts due to health problems.
2001 Continues with the Repsol YPF Honda Team in the 500cc World Championship - finishes eighth in the Drivers' series with 120 points.
2000 Raced in the 500cc World Championship with Repsol Honda. Ninth in the championship.
1999 Raced in the 500cc World Championship. Six wins and won the championship with Repsol Honda.
1998 Third in the 500cc World Championship with Repsol Honda.
1997 Raced in the 500cc World Championship. Finished fourth in the standings racing for Repsol Honda.
1996 Second in the 500cc World Championship racing for Repsol Honda.
1995 Fourth in the 500cc World Championship racing for Repsol Honda.
1994 Sixth in the 500cc World Championship racing for HRC.
1993 Eighth in the 500c World Championship.
1992 Made World Championship 500cc debut (JPN) and became the first ever Spainard to win a 500 GP in his first season. Finished eighth in the standings with Campsa Honda Pons.
1991 Raced in the World Championship 250cc with JJ Cobas/Honda. 13th in the standings.
1990 World Championship 250cc debut (USA) with Yamaha Marlboro. Agostini. 11th in the championship.
1989 World Championship 125cc won title with 5 wins for JJ Cobas/Rotax. Also recorded first 125cc win (AUS) and first pole and first fastest lap (SPA).
1988 World Championship 80cc. 7th in the standings with the Derbi team.
World Championship 125cc debut (GBR) with the Derbi team. 31st in the standings.
1987 One-year apprenticeship in European Championship.
World Championship 80cc debut (SPA) - 2nd on debut. 11th in standings. Races with the Derbi team.
** Discovered racing 80cc street bike by Spanish Derbi factory.