| Date | Track | Series / Event | Pos | Car |
| 1984 |
| 1984/03/24 | Kyalami (ZAF) | World 500ccm Championship | 1 | Yamaha |
| 1984/05/06 | Jarama (ESP) | World 500ccm Championship | 1 | Yamaha |
| 1984/05/20 | Salzburgring (AUT) | World 500ccm Championship | 1 | Yamaha |
| 1984/08/12 | Anderstorp (SWE) | World 500ccm Championship | 1 | Honda |
| 1985 |
| 1985/03/23 | Kyalami (ZAF) | World 500ccm Championship | 1 | Yamaha |
| 1985/06/16 | Rijeka (YUG) | World 500ccm Championship | 1 | Yamaha |
| 1985/09/01 | Misano (ITA) | World 500ccm Championship | 1 | Yamaha |
| 1986 |
| 1986/05/18 | Monza (ITA) | World 500ccm Championship | 1 | Yamaha |
| 1986/05/25 | Nürburgring, RP (DEU) | World 500ccm Championship | 1 | Yamaha |
| 1986/06/08 | Salzburgring (AUT) | World 500ccm Championship | 1 | Yamaha |
| 1986/06/15 | Rijeka (YUG) | World 500ccm Championship | 1 | Yamaha |
| 1986/07/20 | Le Castellet (FRA) | World 500ccm Championship | 1 | Yamaha |
| 1986/08/10 | Anderstorp (SWE) | World 500ccm Championship | 1 | Yamaha |
| 1986/08/24 | Misano (ITA) | World 500ccm Championship | 1 | Yamaha |
| 1987 |
| 1987/05/17 | Hockenheim, BW (DEU) | World 500ccm Championship | 1 | Yamaha |
| 1987/06/27 | Assen (NLD) | World 500ccm Championship
Dutch 500ccm TT | 1 | Yamaha |
| 1987/08/02 | Donington (GBR) | World 500ccm Championship | 1 | Yamaha |
| 1987/09/13 | Jarama (ESP) | World 500ccm Championship | 1 | Yamaha |
| 1987/10/04 | Buenos Aires (ARG) | World 500ccm Championship | 1 | Yamaha |
| 1988 |
| 1988/04/10 | Laguna Seca, CA (USA) | World 500ccm Championship | 1 | Yamaha |
| 1988/05/01 | Jerez (ESP) | World 500ccm Championship | 1 | Yamaha |
| 1988/05/22 | Imola (ITA) | World 500ccm Championship | 1 | Yamaha |
| 1988/06/12 | Salzburgring (AUT) | World 500ccm Championship | 1 | Yamaha |
| 1988/07/24 | Le Castellet (FRA) | World 500ccm Championship | 1 | Yamaha |
| 1988/08/14 | Anderstorp (SWE) | World 500ccm Championship | 1 | Yamaha |
| 1988/09/17 | Goiania (BRA) | World 500ccm Championship | 1 | Yamaha |
| 1989 |
| 1989/04/30 | Jerez (ESP) | World 500ccm Championship | 1 | Honda |
| 1989/07/02 | Spa (BEL) | World 500ccm Championship | 1 | Honda |
| 1989/07/16 | Le Mans (FRA) | World 500ccm Championship | 1 | Honda |
| 1989/08/13 | Anderstorp (SWE) | World 500ccm Championship | 1 | Honda |
| 1992 |
| 1992/07/12 | Hungaroring (HUN) | World 500ccm Championship | 1 | Cagiva |
