Grands Prix
| Round | Race | Location | 125cc winner | 250cc winner | 500cc winner | Report |
|---|---|---|---|---|---|---|
| 1 | Japanese Grand Prix | Suzuka | Hans Spaan | Luca Cadalora | Wayne Rainey | Report |
| 2 | United States Grand Prix | Laguna Seca | No race | John Kocinski | Wayne Rainey | Report |
| 3 | Spanish Grand Prix | Jerez | Jorge Martínez | John Kocinski | Wayne Gardner | Report |
| 4 | Nations Grand Prix | Misano | Jorge Martínez | John Kocinski | Wayne Rainey | Report |
| 5 | German Grand Prix | Nürburgring | Doriano Romboni | Wilco Zeelenberg | Kevin Schwantz | Report |
| 6 | Austrian Grand Prix | Salzburgring | Jorge Martínez | Luca Cadalora | Kevin Schwantz | Report |
| 7 | Yugoslavian Grand Prix | Rijeka | Stefan Prein | Carlos Cardús | Wayne Rainey | Report |
| 8 | Dutch TT | Assen | Doriano Romboni | John Kocinski | Kevin Schwantz | Report |
| 9 | Belgian Grand Prix | Spa | Hans Spaan | John Kocinski | Wayne Rainey | Report |
| 10 | French Grand Prix | Le Mans | Hans Spaan | Carlos Cardús | Kevin Schwantz | Report |
| 11 | British Grand Prix | Donington | Loris Capirossi | Luca Cadalora | Kevin Schwantz | Report |
| 12 | Swedish Grand Prix | Anderstorp | Hans Spaan | Carlos Cardús | Wayne Rainey | Report |
| 13 | Czechoslovakian Grand Prix | Brno | Hans Spaan | Carlos Cardús | Wayne Rainey | Report |
| 14 | Hungarian Grand Prix | Hungaroring | Loris Capirossi | John Kocinski | Mick Doohan | Report |
| 15 | Australian Grand Prix | Phillip Island | Loris Capirossi | John Kocinski | Wayne Gardner | Report |
Read more about this topic: 1990 Grand Prix Motorcycle Racing Season