2298 pts · Poles 58
Includes 9 points from races with no result in the official records (counted from the official standings).
39 of these races have no result in the official data; their results come from the Italian Wikipedia.
| 1989 | Suzuka | grid 6 | DNF | |
| 1989 | Phillip Island | grid 12 | 8 +8 | |
| 1989 | Laguna Seca | 8 +8 | ||
| 1989 | Jerez | grid 11 | DNF | |
| 1989 | Misano | grid 9 | DNF | |
| 1989 | Hockenheim | grid 6 | 3 +15 | |
| 1989 | Salzburgring | grid 10 | 8 +8 | |
| 1989 | Rijeka | grid 10 | 6 +10 | |
| 1989 | Assen | grid 12 | 9 +7 | |
| 1989 | Spa | grid 3 | 8 +4 | |
| 1989 | Le Mans | grid 8 | 8 +8 | |
| 1989 | Goiânia | grid 8 | 4 +13 | |
| 1990 | Suzuka | grid 5 | DNF | |
| 1990 | Laguna Seca | grid 5 | 2 +17 | |
| 1990 | Jerez | grid 1 | 4 +13 | |
| 1990 | Misano | grid 3 | 3 +15 | |
| 1990 | Nürburgring | grid 2 | DNF | |
| 1990 | Salzburgring | grid 3 | 3 +15 | |
| 1990 | Rijeka | grid 5 | 4 +13 | |
| 1990 | Assen | grid 7 | 4 +13 | |
| 1990 | Spa | grid 4 | 6 +10 | |
| 1990 | Le Mans | grid 5 | 4 +13 | |
| 1990 | Donington | grid 7 | 4 +13 | |
| 1990 | Anderstorp | grid 6 | 4 +13 | |
| 1990 | Brno | grid 5 | 9 +7 | |
| 1990 | Hungaroring | grid 1 | 1 +20 | |
| 1990 | Phillip Island | grid 1 | 2 +17 | |
| 1991 | Suzuka | grid 2 | 2 +17 | |
| 1991 | Eastern Creek | grid 3 | 2 +17 | |
| 1991 | Laguna Seca | grid 4 | 2 +17 | |
| 1991 | Jerez | grid 3 | 1 +20 | |
| 1991 | Misano | grid 5 | 1 +20 | |
| 1991 | Hockenheim | grid 1 | 3 +15 | |
| 1991 | Salzburgring | grid 1 | 1 +20 | |
| 1991 | Jarama | grid 3 | 2 +17 | |
| 1991 | Assen | grid 4 | DNF | |
| 1991 | Paul Ricard | grid 2 | 2 +17 | |
| 1991 | Donington | grid 6 | 3 +15 | |
| 1991 | Mugello | grid 2 | 3 +15 | |
| 1991 | Brno | grid 2 | 2 +17 | |
| 1991 | Le Mans | grid 2 | 2 +17 | |
| 1991 | Shah Alam | grid 3 | 3 +15 | |
| 1992 | Suzuka | grid 5 | 1 +20 | |
| 1992 | Eastern Creek | grid 1 | 1 +20 | |
| 1992 | Shah Alam | grid 1 | 1 +20 | |
| 1992 | Jerez | grid 1 | 1 +20 | |
| 1992 | Mugello | grid 1 | 2 +15 | |
| 1992 | Catalunya | grid 1 | 2 +15 | |
| 1992 | Hockenheim | grid 1 | 1 +20 | |
| 1992 | Assen | Did not start | ||
| 1992 | Interlagos | grid 14 | 12 | |
| 1992 | Kyalami | grid 3 | 6 +6 | |
| 1993 | Eastern Creek | grid 8 | DNF | |
| 1993 | Shah Alam | grid 5 | 4 +13 | |
| 1993 | Jerez | grid 7 | 4 +13 | |
| 1993 | Salzburgring | grid 2 | 2 +20 | |
| 1993 | Hockenheim | grid 2 | DNF | |
| 1993 | Assen | grid 1 | 2 +20 | |
| 1993 | Catalunya | grid 1 | 2 +20 | |
| 1993 | Mugello | grid 1 | 1 +25 | |
| 1993 | Donington | grid 3 | DNF | |
| 1993 | Brno | grid 2 | 3 +16 | |
| 1993 | Misano | grid 5 | 2 +20 | |
| 1993 | Laguna Seca | grid 1 | DNF | |
| 1994 | Eastern Creek | grid 3 | 3 +16 | |
| 1994 | Shah Alam | grid 4 | 1 +25 | |
| 1994 | Suzuka | grid 2 | 2 +20 | |
| 1994 | Jerez | grid 3 | 1 +25 | |
| 1994 | Salzburgring | grid 1 | 1 +25 | |
| 1994 | Hockenheim | grid 1 | 1 +25 | |
| 1994 | Assen | grid 1 | 1 +25 | |
| 1994 | Mugello | grid 3 | 1 +25 | |
| 1994 | Le Mans | grid 1 | 1 +25 | |
| 1994 | Donington | grid 1 | 2 +20 | |
| 1994 | Brno | grid 2 | 1 +25 | |
| 1994 | Laguna Seca | grid 1 | 3 +16 | |
| 1994 | Buenos Aires | grid 2 | 1 +25 | |
| 1994 | Catalunya | grid 2 | 2 +20 | |
| 1995 | Eastern Creek | grid 1 | 1 +25 | |
| 1995 | Shah Alam | grid 1 | 1 +25 | |
| 1995 | Suzuka | grid 1 | 2 +20 | |
| 1995 | Jerez | grid 1 | DNF | |
| 1995 | Nürburgring | grid 1 | DNF | |
| 1995 | Mugello | grid 1 | 1 +25 | |
| 1995 | Assen | grid 2 | 1 +25 | |
| 1995 | Le Mans | grid 1 | 1 +25 | |
| 1995 | Donington | grid 1 | 1 +25 | |
| 1995 | Brno | grid 2 | 2 +20 | |
| 1995 | Rio | grid 1 | 2 +20 | |
| 1995 | Buenos Aires | grid 2 | 1 +25 | |
| 1995 | Catalunya | grid 2 | 4 +13 | |
| 1996 | Shah Alam | grid 3 | 5 +11 | |
| 1996 | Sentul | grid 1 | 1 +25 | |
| 1996 | Suzuka | grid 7 | 6 +10 | |
| 1996 | Jerez | grid 1 | 1 +25 | |
| 1996 | Mugello | grid 1 | 1 +25 | |
| 1996 | Paul Ricard | grid 2 | 1 +25 | |
| 1996 | Assen | grid 3 | 1 +25 | |
| 1996 | Nürburgring | grid 2 | 2 +20 | |
| 1996 | Donington | grid 1 | 1 +25 | |
| 1996 | Red Bull Ring | grid 1 | 2 +20 | |
| 1996 | Brno | grid 2 | 2 +20 | |
| 1996 | Imola | grid 1 | 1 +25 | |
| 1996 | Catalunya | grid 1 | 2 +20 | |
| 1996 | Rio | grid 1 | 1 +25 | |
| 1996 | Eastern Creek | grid 3 | 8 +8 | |
| 1997 | Shah Alam | grid 2 | 1 +25 | |
| 1997 | Suzuka | grid 2 | 1 +25 | |
| 1997 | Jerez | grid 2 | 2 +20 | |
| 1997 | Mugello | grid 1 | 1 +25 | |
| 1997 | Red Bull Ring | grid 1 | 1 +25 | |
| 1997 | Paul Ricard | grid 1 | 1 +25 | |
| 1997 | Assen | grid 1 | 1 +25 | |
| 1997 | Imola | grid 1 | 1 +25 | |
| 1997 | Nürburgring | grid 1 | 1 +25 | |
| 1997 | Rio | grid 1 | 1 +25 | |
| 1997 | Donington | grid 1 | 1 +25 | |
| 1997 | Brno | grid 1 | 1 +25 | |
| 1997 | Catalunya | grid 1 | 1 +25 | |
| 1997 | Sentul | grid 1 | 2 +20 | |
| 1997 | Phillip Island | grid 1 | DNF | |
| 1998 | Suzuka | grid 4 | DNF | |
| 1998 | Johor | grid 1 | 1 +25 | |
| 1998 | Jerez | grid 5 | 2 +20 | |
| 1998 | Mugello | grid 1 | 1 +25 | |
| 1998 | Paul Ricard | grid 1 | 2 +20 | |
| 1998 | Jarama | grid 1 | Out on lap 1 | |
| 1998 | Assen | grid 1 | 1 +25 | |
| 1998 | Donington | grid 2 | 2 +20 | |
| 1998 | Sachsenring | grid 3 | 1 +25 | |
| 1998 | Brno | grid 1 | DNF | |
| 1998 | Imola | grid 3 | 1 +25 | |
| 1998 | Catalunya | grid 4 | 1 +25 | |
| 1998 | Phillip Island | grid 1 | 1 +25 | |
| 1998 | Buenos Aires | grid 1 | 1 +25 | |
| 1999 | Sepang | grid 7 | 4 +13 | |
| 1999 | Motegi | grid 2 | 2 +20 |