Netherlands, Assen
Assen
A 4.542 km circuit in Assen. Timed layouts, lap times and what you need to know before a track day here.
Going to Assen?
See which corner costs you the most time.
Record the session on your phone. Vetkuro splits the laps, times every sector and shows where the gap to your best lap opens.
Filming your laps?
Put speed, delta and lap time on your onboard video.
Overlay the data from the same session on the footage, synced automatically. One file to watch back, or to share.
Driving with friends?
Find out who is faster, and in which corner.
Overlay two laps from the same day and see exactly where the gap opens, not only the final number.
Going to Assen?
See which corner costs you the most time.
Record the session on your phone. Vetkuro splits the laps, times every sector and shows where the gap to your best lap opens.
Filming your laps?
Put speed, delta and lap time on your onboard video.
Overlay the data from the same session on the footage, synced automatically. One file to watch back, or to share.
Driving with friends?
Find out who is faster, and in which corner.
Overlay two laps from the same day and see exactly where the gap opens, not only the final number.
Recorded on Vetkuro · No sessions yet
Assen lap times
Timed from GPS on real track days, not typed in. Compare within one layout and one vehicle class, because a motorcycle lap and a car lap are not the same thing.
No recorded laps on Assen yet.
Record a session on this layout and your lap becomes the time other drivers in your class compare against.
Track day guide
Track day at Assen
Weather by month, who runs the days and what to put in the car. Written for a first visit.
Who runs track days here
What to bring
- Helmet that meets the organiser's standard
- Long sleeves, long trousers, closed shoes
- Tyre pressure gauge, since pressures rise fast on track
- Removable towing eye fitted or in the car
- An empty boot: loose items out before the first session
- Your phone in a rigid mount, recording with Vetkuro
Weather by month
Now, in November: 9°C by day, 4°C at night, rain on 16 days. Warmest in August, 23°C by day on average. Coldest in January, 1°C at night. Fewest days with rain: April.
Rain: days with rain per month. Climate: NASA POWER, daily data 2016–2025. Monthly averages, not a forecast. Check the organiser's calendar for open dates. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division.
Elevation profile
Assen elevation
Elevation change 3 m. That is within the margin of the terrain model, so Assen counts as flat and there is no profile to draw.
From a terrain model, sampled every 10 m along the track line and smoothed over 100 m. Produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved. The organisations in charge of the Copernicus programme by law or by delegation do not incur any liability for any use of the Copernicus WorldDEM-30.
Going to Assen?
More to do with the session than the lap time
About Assen
Overview
The TT Circuit Assen lies at the town of Assen in the province of Drenthe, in the north of the Netherlands, and is owned by the Stichting Circuit van Drenthe. Motorcycle fans call it the Cathedral of Speed. Assen has staged the Dutch TT in every season of the motorcycle Grand Prix world championship since the series began in 1949, except 2020, and it hosts rounds of the Superbike World Championship, the British Superbike Championship, the sidecar world championship and the Supercar Challenge. The annual Truckstar Festival has been held at the circuit since 1980, and the Motocross World Championship has also visited. The venue holds about 110,000 spectators, around 60,000 of them seated.
Technical Specifications and Track Features
The layout used for international motorcycle racing measures 4,542 m and has 18 corners, with a track width of 10 m to 14 m. Assen was long known as a riders' circuit: the bends were traditionally cambered towards the inside and the rough, grippy asphalt allowed high corner speeds. Many of the banked bends have since been modified for safety, but some camber remains, around 8% at Stekkenwal, about 6% at Meeuwenmeer, Hoge Heide and Ramshoek, and 4.5% to 5% in Haarbocht, Ossebroeken and Strubben on the newer northern section. Other named corners include De Bult and the Ruskenhoek, and one of the grandstands is named after Geert Timmer. Car races use a slightly different version of the layout.
Facilities and Specialized Areas
Between 1999 and 2002 about 23 million euros were spent on upgrades, and the riders' quarters were enlarged in the early 2000s. The circuit has a main grandstand, a business and hospitality centre, and a separate TT Junior Track used for motorcycle practice sessions. Outside the race weekends the venue hosts car track days, racing driver courses and free-access driving events, and visitors can walk the track.
History
The first Dutch TT was held on 11 July 1925 by the local motor club on a long course over brick-paved and partly unpaved country roads linking villages such as Rolde, Borger, Schoonloo and Grolloo; Piet van Wijngaarden won on a 500 cc Norton. From 1926 the race used a public-road circuit closer to Assen, through Hooghalen and Laaghalen, where Geoff Duke averaged about 170 km/h in 1954. A permanent circuit opened on 16 July 1955, reusing about a third of the old road course and adding purpose-built sections. It was shortened in 1984 and again in 2005 and 2006, when most of the long northern loop was removed and the land was sold to developers, changes that riders such as Casey Stoner and Jorge Lorenzo criticised. A chicane was added in 2009 at the request of A1 Grand Prix, and in 2010 the Ruskenhoek was reshaped for the motorcycle layout. DTM raced at Assen between 2019 and 2021, Superleague Formula in 2010 and 2011, and Champ Car in 2007.
Address
De Haar
9405 TE Assen
Netherlands
Contact
ttcircuit.com
