2008 Grand Prix motorcycle racing season Grands Prix Grands Prix

| Round | Date_ | Grand_Prix | Circuit | _125cc_winner | _250cc_winner | MotoGP_winner | Report |
|---|---|---|---|---|---|---|---|
| 1 | 9 March | Qatar Grand Prix ‡ | Losail | Sergio Gadea | Mattia Pasini | Casey Stoner | Report |
| 2 | 30 March | Spanish Grand Prix | Jerez | Simone Corsi | Mika Kallio | Dani Pedrosa | Report |
| 3 | 13 April | Portuguese Grand Prix | Estoril | Simone Corsi | Álvaro Bautista | Jorge Lorenzo | Report |
| 4 | 4 May | Chinese Grand Prix | Shanghai | Andrea Iannone | Mika Kallio | Valentino Rossi | Report |
| 5 | 18 May | French Grand Prix | Le Mans | Mike di Meglio | Alex Debón | Valentino Rossi | Report |
| 6 | 1 June | Italian Grand Prix | Mugello | Simone Corsi | Marco Simoncelli | Valentino Rossi | Report |