The TT Circuit Assen is a motorsport race track built in 1955 and located in Assen, Netherlands. Host of the Dutch TT, it is popularly referred to as "The Cathedral of Speed" by motorcycle racing fans. The venue has the distinction of holding the most Grand Prix motorcycle races every year since the series was created in 1949. It has a capacity of 110,000 sp…
The TT Circuit Assen is a motorsport race track built in 1955 and located in Assen, Netherlands. Host of the Dutch TT, it is popularly referred to as "The Cathedral of Speed" by motorcycle racing fans. The venue has the distinction of holding the most Grand Prix motorcycle races every year since the series was created in 1949. It has a capacity of 110,000 spectators, including 60,000 seats. Since 1992, the circuit has also been part of the World SBK calendar except for the 2020 season.
Location: Assen, Netherlands
Capacity: 110,000
Owner: Stichting Circuit van Drenthe
Opened: 11 July 1925 (Van Drenthe street circuit) · 16 July 1955 (modern circuit)
FIA Grade: 2
Closed: 1954 (for street circuit)
Major events: Current: · Grand Prix motorcycle racing · Dutch TT (1949–2019, 2021–present) · World SBK (1992–2019, 2021–present) · Sidecar World Championship (1955–2003, 2005–2008, 2013–2019, 2021–present) · Eurocup-3 (2025) · BSB (2012–2019, 2025) · Supercar Challenge (2001–present) · Former: · FIM EWC (1979–1980, 1995–1996, 2003–2006) · MXGP (2015–2018) · DTM (2019–2021) · ETRC (2004–2005, 2009) · ADAC GT Masters (2008–2011) · Superleague Formula (2010–2011) · Champ Car World Series (2007)