Grands Prix
| Round | Date | Grand Prix | Circuit | 125cc winner | 250cc winner | MotoGP winner | Report |
|---|---|---|---|---|---|---|---|
| 1 | March 26 | Spanish Grand Prix | Jerez | Álvaro Bautista | Jorge Lorenzo | Loris Capirossi | Report |
| 2 | April 8 | Qatar Grand Prix | Losail | Álvaro Bautista | Jorge Lorenzo | Valentino Rossi | Report |
| 3 | April 30 | Turkish Grand Prix | Istanbul | Héctor Faubel | Hiroshi Aoyama | Marco Melandri | Report |
| 4 | May 14 | Chinese Grand Prix | Shanghai | Mika Kallio | Héctor Barberá | Dani Pedrosa | Report |
| 5 | May 21 | French Grand Prix | Le Mans | Thomas Lüthi | Yuki Takahashi | Marco Melandri | Report |
| 6 | June 4 | Italian Grand Prix | Mugello | Mattia Pasini | Jorge Lorenzo | Valentino Rossi | Report |
| 7 | June 18 | Catalan Grand Prix | Catalunya | Álvaro Bautista | Andrea Dovizioso | Valentino Rossi | Report |
| 8 | June 24 | Dutch TT †† | Assen | Mika Kallio | Jorge Lorenzo | Nicky Hayden | Report |
| 9 | July 2 | British Grand Prix | Donington Park | Álvaro Bautista | Jorge Lorenzo | Dani Pedrosa | Report |
| 10 | July 16 | German Grand Prix | Sachsenring | Mattia Pasini | Yuki Takahashi | Valentino Rossi | Report |
| 11 | July 23 | United States Grand Prix † | Laguna Seca | No 125cc and 250cc race | Nicky Hayden | Report | |
| 12 | August 20 | Czech Republic Grand Prix | Brno | Álvaro Bautista | Jorge Lorenzo | Loris Capirossi | Report |
| 13 | September 10 | Malaysian Grand Prix | Sepang | Álvaro Bautista | Jorge Lorenzo | Valentino Rossi | Report |
| 14 | September 17 | Australian Grand Prix | Phillip Island | Álvaro Bautista | Jorge Lorenzo | Marco Melandri | Report |
| 15 | September 24 | Japanese Grand Prix | Motegi | Mika Kallio | Hiroshi Aoyama | Loris Capirossi | Report |
| 16 | October 15 | Portuguese Grand Prix | Estoril | Álvaro Bautista | Andrea Dovizioso | Toni Elías | Report |
| 17 | October 29 | Valencian Grand Prix | Valencia | Héctor Faubel | Alex de Angelis | Troy Bayliss | Report |
- † = MotoGP class only
- †† = Saturday Race
Read more about this topic: 2006 Grand Prix Motorcycle Racing Season