El momento histórico de Assen
Boicot de los pilotos
Los pilotos privados de 350 de 1955, insatisfechos con las primas que recibían, decidieron boicotear la carrera, contando con el apoyo de algunas de las estrellas de la época, como Duke, Armstrong, Campbell, Masetti, Ahearn… Las consecuencias del boicot no se hicieron esperar. La FIM sancionó a 16 pilotos con suspensiones de entre cuatro y seis meses. En la práctica eso supuso que Duke, campeón de 500 en 1955, se perdería la mitad de la temporada de 1956.
Localización:
Denominación oficial: Circuit Van Drenthe Assen
Localización: A 2 km del suroeste de Assen; 28 km al sur de Groningen.
Información: www.tt-assen.com
Datos técnicos
Año de construcción: 1955
Última reforma: 2006
Longitud: 4.555 metros
Anchura máxima: 14 metros
Número de curvas: 14
Capacidad de butacas: 64.500
Ganadores 2008
125 cc: Gabor Talmacsi (Aprilia).
250 cc: Álvaro Bautista (Aprilia).
MotoGP: Casey Stoner (Yamaha).
Records del circuito
125cc: Sergio Gadea (Aprilia) 1’45”098 (2006).
250cc: Álvaro Bautista (Aprilia) 1’40”340 (2008).
MotoGP: Casey Stoner (Ducati) 1’36”738 (2000).
Velocidades máximas en 2008
125cc: 216,2 km/h Stefan Bradl (Aprilia).
250cc: 251,6 km/h Thomas Luthi (Aprilia).
MotoGP: 297,2 km/h Casey Stoner (Ducati).
Una vuelta "On Board" al Circuito de Assen
Ganadores en Assen
| Temporada | Categoría | Piloto | País | Marca |
| 2008 | MotoGP | Stoner, Casey | AUSTRALIA | Ducati |
| 250cc | Bautista, Alvaro | SPAIN | Aprilia | |
| 125cc | Talmacsi, Gabor | HUNGARY | Aprilia | |
| 2007 | MotoGP | Rossi, Valentino | ITALY | Yamaha |
| 250cc | Lorenzo, Jorge | SPAIN | Aprilia | |
| 125cc | Pasini, Mattia | ITALY | Aprilia | |
| 2006 | MotoGP | Hayden, Nicky | UNITED STATES | Honda |
| 250cc | Lorenzo, Jorge | SPAIN | Aprilia | |
| 125cc | Kallio, Mika | FINLAND | KTM | |
| 2005 | MotoGP | Rossi, Valentino | ITALY | Yamaha |
| 250cc | Porto, Sebastian | ARGENTINA | Aprilia | |
| 125cc | Talmacsi, Gabor | HUNGARY | KTM | |
| 2004 | MotoGP | Rossi, Valentino | ITALY | Yamaha |
| 250cc | Porto, Sebastian | ARGENTINA | Aprilia | |
| 125cc | Lorenzo, Jorge | SPAIN | Derbi | |
| 2003 | MotoGP | Gibernau, Sete | SPAIN | Honda |
| 250cc | West, Anthony | AUSTRALIA | Aprilia | |
| 125cc | Jenkner, Steve | GERMANY | Aprilia | |
| 2002 | 500cc | Rossi, Valentino | ITALY | Honda |
| 250cc | Melandri, Marco | ITALY | Aprilia | |
| 125cc | Pedrosa, Dani | SPAIN | Honda | |
| 2001 | 500cc | Biaggi, Max | ITALY | Yamaha |
| 250cc | Mcwilliams, Jeremy | GREAT BRITAIN | Aprilia | |
| 125cc | Elias, Toni | SPAIN | Honda | |
| 2000 | 500cc | Barros, Alex | BRAZIL | Honda |
| 250cc | Ukawa, Tohru | JAPAN | Honda | |
| 125cc | Ui, Youichi | JAPAN | Derbi | |
| 1999 | 500cc | Okada, Tadayuki | JAPAN | Honda |
| 250cc | Capirossi, Loris | ITALY | Honda | |
| 125cc | Azuma, Masao | JAPAN | Honda | |
| 1998 | 500cc | Doohan, Mick | AUSTRALIA | Honda |
| 250cc | Rossi, Valentino | ITALY | Aprilia | |
| 125cc | Melandri, Marco | ITALY | Honda | |
| 1997 | 500cc | Doohan, Mick | AUSTRALIA | Honda |
| 250cc | Harada, Tetsuya | JAPAN | Aprilia | |
| 125cc | Rossi, Valentino | ITALY | Aprilia | |
| 1996 | 500cc | Doohan, Mick | AUSTRALIA | Honda |
| 250cc | Waldmann, Ralf | GERMANY | Honda | |
| 125cc | Alzamora, Emilio | SPAIN | Honda | |
| 1995 | 500cc | Doohan, Mick | AUSTRALIA | Honda |
| 250cc | Biaggi, Max | ITALY | Aprilia | |
| 125cc | Raudies, Dirk | GERMANY | Honda | |
| 1994 | 500cc | Doohan, Mick | AUSTRALIA | Honda |
| 250cc | Biaggi, Max | ITALY | Aprilia | |
| 125cc | Tsujimura, Takeshi | JAPAN | Honda | |
| 1993 | 500cc | Schwantz, Kevin | UNITED STATES | Suzuki |
| 250cc | Capirossi, Loris | ITALY | Honda | |
| 125cc | Raudies, Dirk | GERMANY | Honda | |
| 1992 | 500cc | Criville, Alex | SPAIN | Honda |
| 250cc | Chili, Pierfrancesco | ITALY | Aprilia | |
| 125cc | Gianola, Ezio | ITALY | Honda | |
| 1991 | 500cc | Schwantz, Kevin | UNITED STATES | Suzuki |
| 250cc | Chili, Pierfrancesco | ITALY | Aprilia | |
| 125cc | Waldmann, Ralf | GERMANY | Honda | |
| 1990 | 500cc | Schwantz, Kevin | UNITED STATES | Suzuki |
| 250cc | Kocinski, John | UNITED STATES | Yamaha | |
| 125cc | Romboni, Doriano | ITALY | Honda | |
| 1989 | 80cc | Oettl, Peter | GERMANY | Krauser |
| 500cc | Rainey, Wayne | UNITED STATES | Yamaha | |
| 250cc | Roth, Reinhold | GERMANY | Honda | |
| 125cc | Spaan, Hans | NETHERLANDS | Honda | |
| 1988 | 80cc | Martinez, Jorge | SPAIN | Derbi |
| 500cc | Gardner, Wayne | AUSTRALIA | Honda | |
| 250cc | Garriga, Juan | SPAIN | Yamaha | |
| 125cc | Martinez, Jorge | SPAIN | Derbi | |
| 1987 | 80cc | Martinez, Jorge | SPAIN | Derbi |
| 500cc | Lawson, Eddie | UNITED STATES | Yamaha | |
| 250cc | Mang, Anton | GERMANY | Honda | |
| 125cc | Gresini, Fausto | ITALY | Garelli | |
| 1986 | 80cc | Martinez, Jorge | SPAIN | Derbi |
| 500cc | Gardner, Wayne | AUSTRALIA | Honda | |
| 250cc | Lavado, Carlos | VENEZUELA | Yamaha | |
| 125cc | Cadalora, Luca | ITALY | Garelli | |
| 1985 | 80cc | Kafka, Gerd | AUSTRIA | Seel |
| 500cc | Mamola, Randy | UNITED STATES | Honda | |
| 250cc | Spencer, Freddie | UNITED STATES | Honda | |
| 125cc | Bianchi, Pierpaolo | ITALY | MBA | |
| 1984 | 80cc | Martinez, Jorge | SPAIN | Derbi |
| 500cc | Mamola, Randy | UNITED STATES | Honda | |
| 250cc | Lavado, Carlos | VENEZUELA | Yamaha | |
| 125cc | Nieto, Angel | SPAIN | Garelli | |
| 1983 | 50cc | Lazzarini, Eugenio | ITALY | Garelli |
| 500cc | Roberts, Kenny | UNITED STATES | Yamaha | |
| 250cc | Lavado, Carlos | VENEZUELA | Yamaha | |
| 125cc | Nieto, Angel | SPAIN | Garelli | |
| 1982 | 350cc | BaldÉ, Jean Francois | FRANCE | Kawasaki |
| 50cc | DÖrflinger, Stefan | SWITZERLAND | Kreidler | |
| 500cc | Uncini, Franco | ITALY | Suzuki | |
| 250cc | Mang, Anton | GERMANY | Kawasaki | |
| 125cc | Nieto, Angel | SPAIN | Garelli | |
| 1981 | 350cc | Mang, Anton | GERMANY | Kawasaki |
| 50cc | Tormo, Ricardo | SPAIN | Motul Bultaco | |
| 500cc | Lucchinelli, Marco | ITALY | Suzuki | |
| 250cc | Mang, Anton | GERMANY | Kawasaki | |
| 125cc | Nieto, Angel | SPAIN | Minarelli | |
| 1980 | 350cc | Ekerold, Jonnie | SOUTH AFRICA | Yamaha |
| 50cc | Tormo, Ricardo | SPAIN | Kreidler Van Veen | |
| 500cc | Middelburg, Jack | NETHERLANDS | Yamaha | |
| 250cc | Lavado, Carlos | VENEZUELA | Yamaha | |
| 125cc | Nieto, Angel | SPAIN | Minarelli | |
| 1979 | 350cc | Hansford, Greg | AUSTRALIA | Kawasaki |
| 50cc | Lazzarini, Eugenio | ITALY | Kreidler | |
| 500cc | Ferrari, Virginio | ITALY | Suzuki | |
| 250cc | Rossi, Graziano | ITALY | Morbidelli | |
| 125cc | Nieto, Angel | SPAIN | Minarelli | |
| 1978 | 350cc | Ballington, Kork | SOUTH AFRICA | Kawasaki |
| 50cc | Lazzarini, Eugenio | ITALY | Kreidler | |
| 500cc | Cecotto, Johnny | VENEZUELA | Yamaha | |
| 250cc | Roberts, Kenny | UNITED STATES | Yamaha | |
| 125cc | Lazzarini, Eugenio | ITALY | MBA | |
| 1977 | 350cc | Ballington, Kork | SOUTH AFRICA | Yamaha |
| 50cc | Nieto, Angel | SPAIN | Bultaco | |
| 500cc | Hartog, Wil | NETHERLANDS | Suzuki | |
| 250cc | Grant, Mike | GREAT BRITAIN | Kawasaki | |
| 125cc | Nieto, Angel | SPAIN | Bultaco | |
| 1976 | 350cc | Agostini, Giacomo | ITALY | MV Agusta |
| 50cc | Nieto, Angel | SPAIN | Bultaco | |
| 500cc | Sheene, Barry | GREAT BRITAIN | Suzuki | |
| 250cc | Villa, Walter | ITALY | Harley Davidson | |
| 125cc | Bianchi, Pierpaolo | ITALY | Morbidelli | |
| 1975 | 350cc | Braun, Dieter | GERMANY | Yamaha |
| 50cc | Nieto, Angel | SPAIN | Kreidler | |
| 500cc | Sheene, Barry | GREAT BRITAIN | Suzuki | |
| 250cc | Villa, Walter | ITALY | Harley Davidson | |
| 125cc | Pileri, Paolo | ITALY | Morbidelli | |
| 1974 | 350cc | Agostini, Giacomo | ITALY | Yamaha |
| 50cc | Rittberger, Herbert | GERMANY | Kreidler | |
| 500cc | Agostini, Giacomo | ITALY | Yamaha | |
| 250cc | Villa, Walter | ITALY | Harley Davidson | |
| 125cc | KneubÜhler, Bruno | SWITZERLAND | Yamaha | |
| 1973 | 350cc | Agostini, Giacomo | ITALY | MV Agusta |
| 50cc | KneubÜhler, Bruno | SWITZERLAND | Kreidler | |
| 500cc | Read, Phil | GREAT BRITAIN | MV Agusta | |
| 250cc | Braun, Dieter | GERMANY | Yamaha | |
| 125cc | Lazzarini, Eugenio | ITALY | Maico | |
| 1972 | 350cc | Agostini, Giacomo | ITALY | MV Agusta |
| 50cc | Nieto, Angel | SPAIN | Derbi | |
| 500cc | Agostini, Giacomo | ITALY | MV Agusta | |
| 250cc | Gould, Rodney | GREAT BRITAIN | Yamaha | |
| 125cc | Nieto, Angel | SPAIN | Derbi | |
| 1971 | 350cc | Agostini, Giacomo | ITALY | MV Agusta |
| 50cc | Nieto, Angel | SPAIN | Derbi | |
| 500cc | Agostini, Giacomo | ITALY | MV Agusta | |
| 250cc | Read, Phil | GREAT BRITAIN | Yamaha | |
| 125cc | Nieto, Angel | SPAIN | Derbi | |
| 1970 | 350cc | Agostini, Giacomo | ITALY | MV Agusta |
| 50cc | Nieto, Angel | SPAIN | Derbi | |
| 500cc | Agostini, Giacomo | ITALY | MV Agusta | |
| 250cc | Gould, Rodney | GREAT BRITAIN | Yamaha | |
| 125cc | Braun, Dieter | GERMANY | Suzuki | |
| 1969 | 350cc | Agostini, Giacomo | ITALY | MV Agusta |
| 50cc | Smith, Barry | AUSTRALIA | Derbi | |
| 500cc | Agostini, Giacomo | ITALY | MV Agusta | |
| 250cc | Pasolini, Renzo | ITALY | Benelli | |
| 125cc | Simmonds, Dave | GREAT BRITAIN | Kawasaki | |
| 1968 | 350cc | Agostini, Giacomo | ITALY | MV Agusta |
| 50cc | Lodewijkx, Paul | NETHERLANDS | Jamathi | |
| 500cc | Agostini, Giacomo | ITALY | MV Agusta | |
| 250cc | Ivy, Bill | GREAT BRITAIN | Yamaha | |
| 125cc | Read, Phil | GREAT BRITAIN | Yamaha | |
| 1967 | 350cc | Hailwood, Mike | GREAT BRITAIN | Honda |
| 50cc | Katayama, Yoshimi | JAPAN | Suzuki | |
| 500cc | Hailwood, Mike | GREAT BRITAIN | Honda | |
| 250cc | Hailwood, Mike | GREAT BRITAIN | Honda | |
| 125cc | Read, Phil | GREAT BRITAIN | Yamaha | |
| 1966 | 350cc | Hailwood, Mike | GREAT BRITAIN | Honda |
| 50cc | Taveri, Luigi | SWITZERLAND | Honda | |
| 500cc | Redman, Jim | RHODESIA | Honda | |
| 250cc | Hailwood, Mike | GREAT BRITAIN | Honda | |
| 125cc | Ivy, Bill | GREAT BRITAIN | Yamaha | |
| 1965 | 350cc | Redman, Jim | RHODESIA | Honda |
| 50cc | Bryans, Ralph | IRELAND | Honda | |
| 500cc | Hailwood, Mike | GREAT BRITAIN | MV Agusta | |
| 250cc | Read, Phil | GREAT BRITAIN | Yamaha | |
| 125cc | Duff, Mike | CANADA | Yamaha | |
| 1964 | 350cc | Redman, Jim | RHODESIA | Honda |
| 50cc | Bryans, Ralph | IRELAND | Honda | |
| 500cc | Hailwood, Mike | GREAT BRITAIN | MV Agusta | |
| 250cc | Redman, Jim | RHODESIA | Honda | |
| 125cc | Redman, Jim | RHODESIA | Honda | |
| 1963 | 350cc | Redman, Jim | RHODESIA | Honda |
| 50cc | Degner, Ernst | GERMANY | Suzuki | |
| 500cc | Hartle, John | GREAT BRITAIN | Gilera | |
| 250cc | Redman, Jim | RHODESIA | Honda | |
| 125cc | Anderson, Hugh | NEW ZEALAND | Suzuki | |
| 1962 | 350cc | Redman, Jim | RHODESIA | Honda |
| 50cc | Degner, Ernst | GERMANY | Suzuki | |
| 500cc | Hailwood, Mike | GREAT BRITAIN | MV Agusta | |
| 250cc | Redman, Jim | RHODESIA | Honda | |
| 125cc | Taveri, Luigi | SWITZERLAND | Honda | |
| 1961 | 350cc | Hocking, Gary | RHODESIA | MV Agusta |
| 500cc | Hocking, Gary | RHODESIA | MV Agusta | |
| 250cc | Hailwood, Mike | GREAT BRITAIN | Honda | |
| 125cc | Phillis, Tom | AUSTRALIA | Honda | |
| 1960 | 350cc | Surtees, John | GREAT BRITAIN | MV Agusta |
| 500cc | Venturi, Remo | ITALY | MV Agusta | |
| 250cc | Ubbiali, Carlo | ITALY | MV Agusta | |
| 125cc | Ubbiali, Carlo | ITALY | MV Agusta | |
| 1959 | 500cc | Surtees, John | GREAT BRITAIN | MV Agusta |
| 250cc | Provini, Tarquinio | ITALY | MV Agusta | |
| 125cc | Ubbiali, Carlo | ITALY | MV Agusta | |
| 1958 | 350cc | Surtees, John | GREAT BRITAIN | MV Agusta |
| 500cc | Surtees, John | GREAT BRITAIN | MV Agusta | |
| 250cc | Provini, Tarquinio | ITALY | MV Agusta | |
| 125cc | Ubbiali, Carlo | ITALY | MV Agusta | |
| 1957 | 350cc | Campbell, Keith | AUSTRALIA | Moto Guzzi |
| 500cc | Surtees, John | GREAT BRITAIN | MV Agusta | |
| 250cc | Provini, Tarquinio | ITALY | Mondial | |
| 125cc | Provini, Tarquinio | ITALY | Mondial | |
| 1956 | 350cc | Lomas, Bill | GREAT BRITAIN | Moto Guzzi |
| 500cc | Surtees, John | GREAT BRITAIN | MV Agusta | |
| 250cc | Ubbiali, Carlo | ITALY | MV Agusta | |
| 125cc | Ubbiali, Carlo | ITALY | MV Agusta | |
| 1955 | 350cc | Kavanagh, Ken | AUSTRALIA | Moto Guzzi |
| 500cc | Duke, Geoff | GREAT BRITAIN | Gilera | |
| 250cc | Taveri, Luigi | SWITZERLAND | MV Agusta | |
| 125cc | Ubbiali, Carlo | ITALY | MV Agusta | |
| 1954 | 350cc | Anderson, Fergus | GREAT BRITAIN | Moto Guzzi |
| 500cc | Duke, Geoff | GREAT BRITAIN | Gilera | |
| 250cc | Haas, Werner | GERMANY | NSU | |
| 125cc | Hollaus, Rupert | AUSTRIA | NSU | |
| 1953 | 350cc | Lorenzetti, Enrico | ITALY | Moto Guzzi |
| 500cc | Duke, Geoff | GREAT BRITAIN | Gilera | |
| 250cc | Haas, Werner | GERMANY | NSU | |
| 125cc | Haas, Werner | GERMANY | NSU | |
| 1952 | 350cc | Duke, Geoff | GREAT BRITAIN | Norton |
| 500cc | Masetti, Umberto | ITALY | Gilera | |
| 250cc | Lorenzetti, Enrico | ITALY | Moto Guzzi | |
| 125cc | Sandford, Cecyl | GREAT BRITAIN | MV Agusta | |
| 1951 | 350cc | Doran, William | GREAT BRITAIN | AJS |
| 500cc | Duke, Geoff | GREAT BRITAIN | Norton | |
| 125cc | Leoni, Gianni | ITALY | Mondial | |
| 1950 | 350cc | Foster, Bob | GREAT BRITAIN | Velocette |
| 500cc | Masetti, Umberto | ITALY | Gilera | |
| 125cc | Ruffo, Bruno | ITALY | Mondial | |
| 1949 | 350cc | Frith, Freddie | GREAT BRITAIN | Velocette |
| 500cc | Pagani, Nello | ITALY | Gilera | |
| 125cc | Pagani, Nello | ITALY | Mondial |