| Gran Premio d'Olanda |
|---|
Classe 250
| 1952 | TT Circuit Assen | Enrico LORENZETTI (ITA) | MOTO GUZZI |
|---|---|---|---|
| 1953 | TT Circuit Assen | Werner HAAS (GER) | NSU |
| 1954 | TT Circuit Assen | Werner HAAS (GER) | NSU |
| 1955 | TT Circuit Assen | Luigi TAVERI (SVI) | MV AGUSTA |
| 1956 | TT Circuit Assen | Carlo UBBIALI (ITA) | MV AGUSTA |
| 1957 | TT Circuit Assen | Tarquinio PROVINI (ITA) | MONDIAL |
| 1958 | TT Circuit Assen | Tarquinio PROVINI (ITA) | MV AGUSTA |
| 1959 | TT Circuit Assen | Tarquinio PROVINI (ITA) | MV AGUSTA |
| 1960 | TT Circuit Assen | Carlo UBBIALI (ITA) | MV AGUSTA |
| 1961 | TT Circuit Assen | Mike HAILWOOD (GBR) | HONDA |
| 1962 | TT Circuit Assen | Jim REDMAN (RHO) | HONDA |
| 1963 | TT Circuit Assen | Jim REDMAN (RHO) | HONDA |
| 1964 | TT Circuit Assen | Jim REDMAN (RHO) | HONDA |
| 1965 | TT Circuit Assen | Phil READ (GBR) | YAMAHA |
| 1966 | TT Circuit Assen | Mike HAILWOOD (GBR) | HONDA |
| 1967 | TT Circuit Assen | Mike HAILWOOD (GBR) | HONDA |
| 1968 | TT Circuit Assen | Bill IVY (GBR) | YAMAHA |
| 1969 | TT Circuit Assen | Renzo PASOLINI (ITA) | BENELLI |
| 1970 | TT Circuit Assen | Rodney GOULD (GBR) | YAMAHA |
| 1971 | TT Circuit Assen | Phil READ (GBR) | YAMAHA |
| 1972 | TT Circuit Assen | Rodney GOULD (GBR) | YAMAHA |
| 1973 | TT Circuit Assen | Dieter BRAUN (GER) | YAMAHA |
| 1974 | TT Circuit Assen | Walter VILLA (ITA) | HARLEY DAVIDSON |
| 1975 | TT Circuit Assen | Walter VILLA (ITA) | HARLEY DAVIDSON |
| 1976 | TT Circuit Assen | Walter VILLA (ITA) | HARLEY DAVIDSON |
| 1977 | TT Circuit Assen | Mick GRANT (GBR) | KAWASAKI |
| 1978 | TT Circuit Assen | Kenny ROBERTS (USA) | YAMAHA |
| 1979 | TT Circuit Assen | Graziano ROSSI (ITA) | MRBIDELLI |
| 1980 | TT Circuit Assen | Carlos LAVADO (VEN) | YAMAHA |
| 1981 | TT Circuit Assen | Anton MANG (GER) | KAWASAKI |
| 1982 | TT Circuit Assen | Anton MANG (GER) | KAWASAKI |
| 1983 | TT Circuit Assen | Carlos LAVADO (VEN) | YAMAHA |
| 1984 | TT Circuit Assen | Carlos LAVADO (VEN) | YAMAHA |
| 1985 | TT Circuit Assen | Freddie SPENCER (USA) | HONDA |
| 1986 | TT Circuit Assen | Carlos LAVADO (VEN) | YAMAHA |
| 1987 | TT Circuit Assen | Anton MANG (GER) | HONDA |
| 1988 | TT Circuit Assen | Juan GARRIGA (SPA) | YAMAHA |
| 1989 | TT Circuit Assen | Reinhold ROTH (GER) | HONDA |
| 1990 | TT Circuit Assen | John KOCINSKI (USA) | YAMAHA |
| 1991 | TT Circuit Assen | Pierfrancesco CHILI (ITA) | APRILIA |
| 1992 | TT Circuit Assen | Pierfrancesco CHILI (ITA) | APRILIA |
| 1993 | TT Circuit Assen | Loris CAPIROSSI (ITA) | HONDA |
| 1994 | TT Circuit Assen | Max BIAGGI (ITA) | APRILIA |
| 1995 | TT Circuit Assen | Max BIAGGI (ITA) | APRILIA |
| 1996 | TT Circuit Assen | Ralf WALDMANN (GER) | HONDA |
| 1997 | TT Circuit Assen | Tetsuya HARADA (JPN) | APRILIA |
| 1998 | TT Circuit Assen | Valentino ROSSI (ITA) | APRILIA |
| 1999 | TT Circuit Assen | Loris CAPIROSSI (ITA) | HONDA |
| 2000 | TT Circuit Assen | Toru UKAWA (JPN) | HONDA |
| 2001 | TT Circuit Assen | Jeremy McWILLIAMS (GBR) | APRILIA |
| 2002 | TT Circuit Assen | Marco MELANDRI (ITA) | APRILIA |
| 2003 | TT Circuit Assen | Anthony WEST (AUS) | APRILIA |
| 2004 | TT Circuit Assen | Sebastian PORTO (ARG) | APRILIA |
| 2005 | TT Circuit Assen | Sebastian PORTO (ARG) | APRILIA |
| 2006 | TT Circuit Assen | Jorge LORENZO (SPA) | APRILIA |
| 2007 | TT Circuit Assen | Jorge LORENZO (SPA) | APRILIA |
| 2008 | TT Circuit Assen | Alvaro BAUTISTA (SPA) | APRILIA |
| 2009 | TT Circuit Assen | Hiroshi AOYAMA (JPN) | HONDA |
Moto2
| 2010 | TT Circuit Assen | Andrea IANNONE (ITA) | SPEED UP |
|---|---|---|---|
| 2011 | TT Circuit Assen | Marc MARQUEZ (SPA) | SUTER |
| 2012 | TT Circuit Assen | Marc MARQUEZ (SPA) | SUTER |
| 2013 | TT Circuit Assen | Pol ESPARGARO (SPA) | KALEX |
| 2014 | TT Circuit Assen | Anthony WEST (AUS) | KALEX |
| 2015 | TT Circuit Assen | Johann ZARCO (FRA) | KALEX |
| 2016 | TT Circuit Assen | Takaaki NAKAGAMI (JPN) | KALEX |
| 2017 | TT Circuit Assen | Franco MORBIDELLI (ITA) | KALEX |
| 2018 | TT Circuit Assen | Francesco BAGNAIA (ITA) | KALEX |
| 2019 | TT Circuit Assen | Augusto FERNANDEZ (SPA) | KALEX |
| 2020 | cancellato per l'emergenza Coronavirus | ||
| 2021 | TT Circuit Assen | Raul FERNANDEZ (SPA) | KALEX |
| 2022 | TT Circuit Assen | Augusto FERNÁNDEZ (SPA) | KALEX |
| 2023 | TT Circuit Assen | Jake DIXON (GBR) | KALEX |
| 2024 | TT Circuit Assen | Ai OGURA (JPN) | B-24 |
| 2025 | TT Circuit Assen | Diogo MOREIRA (BRA) | KALEX |