Information
Calendar
| # | Date | Track / Event | Winner(s) | Car | Results |
|---|---|---|---|---|---|
| 01 | 1946/??/?? | Assen (NLD) | Jaap de Wit | Race | |
| 02 | 1948/??/?? | Assen (NLD) | Dick Renooy | Race | |
| 03 | 1949/07/09 | Assen (NLD) | Nello Pagani | Mondial | Race |
| 04 | 1950/07/08 | Assen (NLD) | Bruno Ruffo | Mondial | Race |
| 05 | 1951/07/07 | Assen (NLD) | Gianni Leoni | Mondial | Race |
| 06 | 1952/??/?? | Assen (NLD) | Cecil Sandford | Race | |
| 07 | 1953/??/?? | Assen (NLD) | Werner Haas | Race | |
| 08 | 1954/??/?? | Assen (NLD) | Rupert Hollaus | Race | |
| 09 | 1955/??/?? | Assen (NLD) | Carlo Ubbiali | Race | |
| 10 | 1956/??/?? | Assen (NLD) | Carlo Ubbiali | Race | |
| 11 | 1957/??/?? | Assen (NLD) | Tarquinio Provini | Race | |
| 12 | 1958/??/?? | Assen (NLD) | Carlo Ubbiali | Race | |
| 13 | 1959/??/?? | Assen (NLD) | Carlo Ubbiali | Race | |
| 14 | 1960/??/?? | Assen (NLD) | Carlo Ubbiali | Race | |
| 15 | 1961/??/?? | Assen (NLD) | Tom Phillis | Race | |
| 16 | 1962/??/?? | Assen (NLD) | Luigi Taveri | Race | |
| 17 | 1963/??/?? | Assen (NLD) | Hugh Anderson | Race | |
| 18 | 1964/??/?? | Assen (NLD) | Jim Redman | Race | |
| 19 | 1965/??/?? | Assen (NLD) | Mike Duff | Race | |
| 20 | 1966/??/?? | Assen (NLD) | Bill Ivy | Race | |
| 21 | 1967/??/?? | Assen (NLD) | Phil Read | Race | |
| 22 | 1968/??/?? | Assen (NLD) | Phil Read | Race | |
| 23 | 1969/??/?? | Assen (NLD) | Dave Simmonds | Race | |
| 24 | 1970/06/27 | Assen (NLD) | Dieter Braun | Suzuki | Race |
| 25 | 1971/??/?? | Assen (NLD) | Angel Nieto | Race | |
| 26 | 1972/??/?? | Assen (NLD) | Angel Nieto | Race | |
| 27 | 1973/??/?? | Assen (NLD) | Eugenio Lazzarini | Race | |
| 28 | 1974/??/?? | Assen (NLD) | Bruno Kneubühler | Race | |
| 29 | 1975/??/?? | Assen (NLD) | Paolo Pileri | Race | |
| 30 | 1976/??/?? | Assen (NLD) | Pier-Paolo Bianchi | Race | |
| 31 | 1977/??/?? | Assen (NLD) | Angel Nieto | Race | |
| 32 | 1978/??/?? | Assen (NLD) | Eugenio Lazzarini | Race | |
| 33 | 1979/??/?? | Assen (NLD) | Angel Nieto | Race | |
| 34 | 1980/??/?? | Assen (NLD) | Angel Nieto | Race | |
| 35 | 1981/??/?? | Assen (NLD) | Angel Nieto | Race | |
| 36 | 1982/??/?? | Assen (NLD) | Angel Nieto | Race | |
| 37 | 1983/??/?? | Assen (NLD) | Angel Nieto | Race | |
| 38 | 1984/??/?? | Assen (NLD) | Angel Nieto | Race | |
| 39 | 1985/??/?? | Assen (NLD) | Pier-Paolo Bianchi | Race | |
| 40 | 1986/??/?? | Assen (NLD) | Luca Cadalora | Race | |
| 41 | 1987/??/?? | Assen (NLD) | Fausto Gresini | Race | |
| 42 | 1988/??/?? | Assen (NLD) | Jorge Martinez | Race | |
| 43 | 1989/06/24 | Assen (NLD) | Hans Spaan | Honda | Race |
| 44 | 1990/06/30 | Assen (NLD) | Doriano Romboni | Honda | Race |
| 45 | 1991/06/29 | Assen (NLD) | Ralf Waldmann | Honda | Race |
| 46 | 1992/06/27 | Assen (NLD) | Ezio Gianola | Honda | Race |
| 47 | 1993/06/26 | Assen (NLD) | Dirk Raudies | Honda | Race |
| 48 | 1994/06/25 | Assen (NLD) | Takeshi Tsujimura | Honda | Race |
| 49 | 1995/06/24 | Assen (NLD) | Dirk Raudies | Honda | Race |
| 50 | 1996/06/29 | Assen (NLD) | Emilio Alzamora | Honda | Race |
| 51 | 1997/06/28 | Assen (NLD) | Valentino Rossi | Aprilia | Race |
| 52 | 1998/06/27 | Assen (NLD) | Marco Melandri | Honda | Race |
| 53 | 1999/06/26 | Assen (NLD) | Masao Azuma | Honda | Race |
| 54 | 2000/06/24 | Assen (NLD) | Youichi Ui | Derbi | Race |
| 55 | 2001/06/30 | Assen (NLD) | Antonio Elias | Honda | Race |
| 56 | 2002/06/28 | Assen (NLD) | Daniel Pedrosa | Honda | Race |
| 57 | 2003/06/28 | Assen (NLD) | Steve Jenkner | Aprilia | Race |
| 58 | 2004/06/26 | Assen (NLD) | Jorge Lorenzo | Derbi | Race |
| 59 | 2005/06/25 | Assen (NLD) | Gabor Talmacsi | KTM | Race |
| 60 | 2006/06/24 | Assen (NLD) | Mika Kallio | KTM | Race |
| 61 | 2007/06/30 | Assen (NLD) | Mattia Pasini | Aprilia | Race |
| 62 | 2008/06/28 | Assen (NLD) | Gabor Talmacsi | Aprilia | Race |
| 63 | 2009/06/27 | Assen (NLD) | Race | ||
| 64 | 2010/06/26 | Assen (NLD) | Race | ||
| 65 | 2011/06/25 | Assen (NLD) | Race |