319.5 pts · Poles 1
14 of these races have no result in the official data; their results come from the Italian Wikipedia.
| 1987 | Suzuka | grid 6 | DNF | |
| 1987 | Assen | grid 2 | 10 +1 | |
| 1987 | Jarama | grid 5 | 3 +10 | |
| 1988 | Suzuka | grid 7 | 7 +9 | |
| 1988 | Laguna Seca | grid 5 | DNF | |
| 1988 | Jarama | grid 1 | 1 +20 | |
| 1988 | Jerez | grid 3 | 3 +15 | |
| 1988 | Imola | grid 6 | 5 +11 | |
| 1988 | Nürburgring | grid 5 | 5 +11 | |
| 1988 | Salzburgring | grid 11 | 6 +10 | |
| 1988 | Assen | grid 3 | 4 +13 | |
| 1988 | Rijeka | grid 7 | 5 +11 | |
| 1988 | Paul Ricard | 9 +7 | ||
| 1988 | Donington | 5 +11 | ||
| 1988 | Anderstorp | grid 8 | 6 +10 | |
| 1988 | Brno | grid 9 | DNF | |
| 1988 | Goiânia | grid 7 | 6 +10 | |
| 1989 | Suzuka | grid 5 | 5 +11 | |
| 1989 | Phillip Island | grid 6 | 4 +13 | |
| 1989 | Laguna Seca | 4 +13 | ||
| 1989 | Hockenheim | grid 10 | 7 +9 | |
| 1989 | Salzburgring | grid 7 | 5 +11 | |
| 1989 | Rijeka | grid 4 | 4 +13 | |
| 1989 | Assen | grid 5 | 4 +13 | |
| 1989 | Spa | grid 6 | 7 +4.5 | |
| 1989 | Le Mans | grid 4 | 5 +11 | |
| 1989 | Donington | grid 8 | 6 +10 | |
| 1989 | Anderstorp | grid 5 | 5 +11 | |
| 1989 | Brno | grid 7 | 7 +9 | |
| 1989 | Goiânia | grid 4 | 6 +10 | |
| 1990 | Suzuka | grid 7 | 4 +13 | |
| 1990 | Laguna Seca | grid 6 | DNF | |
| 1991 | Suzuka | 13 +3 | ||
| 1991 | Eastern Creek | grid 11 | 11 +5 | |
| 1991 | Shah Alam | grid 7 | 5 +11 |