2008 Grand Prix motorcycle racing season Grands Prix Grands Prix

| Round | Date_ | Grand_Prix | Circuit | _125cc_winner | _250cc_winner | MotoGP_winner | Report |
|---|---|---|---|---|---|---|---|
| 7 | 8 June | Catalan Grand Prix | Catalunya | Mike di Meglio | Marco Simoncelli | Dani Pedrosa | Report |
| 8 | 22 June | British Grand Prix | Donington | Scott Redding | Mika Kallio | Casey Stoner | Report |
| 9 | 28 June | Dutch TT | Assen | Gábor Talmácsi | Álvaro Bautista | Casey Stoner | Report |
| 10 | 13 July | German Grand Prix | Sachsenring | Mike di Meglio | Marco Simoncelli | Casey Stoner | Report |
| 11 | 20 July | United States Grand Prix | Laguna Seca | No 125cc and 250cc race | No 125cc and 250cc race | Valentino Rossi | Report |
| 12 | 17 August | Czech Republic Grand Prix | Brno | Stefan Bradl | Alex Debón | Valentino Rossi | Report |
| 13 | 31 August | San Marino Grand Prix | Misano | Gábor Talmácsi | Álvaro Bautista | Valentino Rossi | Report |