Assen TT winners on wikipedia, click on the link
..........Equipe Francaise de Vitesse Moto en GP250 au Pole Mécanique Alès Gard Cévennes.
Date Grand Prix (Circuit)
April 11th* Qatar (Losail)
April 25th Japan (Motegi)
May 2nd Spain (Jerez)
May 23rd France (Le Mans)
June 6th Italy (Mugello)
June 20th Great Britain (Silverstone)
June 26th** Netherlands (Assen)
July 4th Catalunya Catalunya)
July 18th Germany (Sachsenring)
July 25th*** United States (Laguna Seca)
August 22nd Czech Republic (Brno)
August 29th Indianapolis (Indianapolis)
September 5th San Marino & Riviera di Rimini (Misano)
September 19th Hungary (Balatonring)
October 10th Malaysia (Sepang)
October 17th Australia (Phillip Island)
October 31st Portugal (Estoril)
November 7th Valencia (Ricardo Tormo Valencia)
Reserve Circuit: Motorland Aragon Circuit
* Evening race
** Saturday race
*** Only MotoGP class