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 motorcycling by the fans of the sport. The venue has the distinction of holding the most Grand Prix motorcycle races every year (except 2020) 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 the 2020 season.
Configuration for motorcycle racing | |
Location | Assen, Netherlands |
---|---|
Time zone | CET (UTC+1) CEST (DST) |
Coordinates | 52°57′42″N 6°31′24″E |
Capacity | 110,000 |
FIA Grade | 2 |
Owner | Stichting Circuit van Drenthe |
Opened | 1925 (Van Drenthe street circuit) 1955 (modern circuit) |
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) MotoE (2021–present) Supercar Challenge Former: FIM EWC (1979–1980, 1995–1996, 2003–2006) MXGP (2015–2018) DTM (2019–2021) W Series (2019) TCR Europe (2018) ETRC (2004–2005, 2009) BSB (2012–2019) ADAC GT Masters (2008–2011) Superleague Formula (2010–2011) Champ Car World Series (2007) |
Grand Prix Circuit (2006–present) | |
Length | 4.555 km (2.831 miles) |
Turns | 18 (12 right, 6 left) |
Race lap record | 1:18.298 (Ingo Gerstl, Toro Rosso STR1, 2018, F1) |
Motorcycle Circuit (2010–present) | |
Length | 4.542 km (2.822 miles) |
Turns | 18 (12 right, 6 left) |
Race lap record | 1:32.500 (Aleix Espargaró, Aprilia RS-GP, 2022, MotoGP) |
Grand Prix Circuit (2005) | |
Length | 5.997 km (3.726 miles) |
Race lap record | 2:00.991 (Valentino Rossi, Yamaha YZR-M1, 2005, MotoGP) |
National Circuit (2005) | |
Length | 3.851 km (2.393 miles) |
Race lap record | 1:18.602 (Martin Hippe, Dallara F303, 2005, F3) |
Grand Prix Circuit (2002–2004) | |
Length | 6.027 km (3.745 miles) |
Race lap record | 1:59.472 (Valentino Rossi, Yamaha YZR-M1, 2004, MotoGP) |
National Circuit (2002–2004) | |
Length | 3.904 km (2.426 miles) |
Race lap record | 1:15.928 (Thomas Holzer, Dallara F302, 2004, F3) |
Grand Prix Circuit (1984–2001) | |
Length | 6.049 km (3.759 miles) |
Race lap record | 2:02.471 (Tadayuki Okada, Honda NSR500, 1999, 500cc) |
National Circuit (1981–2001) | |
Length | 3.919 km (2.435 miles) |
Race lap record | 1:23.110 (Raymond Roche, Ducati 888 SBK, 1992, World SBK) |
Grand Prix Circuit (1981–1983) | |
Length | 7.685 km (4.775 miles) |
Race lap record | 2:47.470 (Kenny Roberts, Yamaha YZR500, 1983, 500cc) |
Grand Prix Circuit (1976–1980) | |
Length | 7.717 km (4.796 miles) |
Race lap record | 2:54.500 (Virginio Ferrari, Suzuki RG 500, 1979, 500cc) |
Grand Prix Circuit (1955–1975) | |
Length | 7.700 km (4.785 miles) |
Van Drenthe Circuit (1926–1954) | |
Length | 16.536 km (10.275 miles) |
Original Circuit (1925) | |
Length | 28.400 km (17.650 miles) |
Website | www |
The original Assen track was first used for the 1926 Dutch TT (Tourist Trophy) race, after the first 1925 event was held on country roads through the villages of Rolde, Borger, Schoonloo and Grolloo, and organized by the Motorclub Assen en Omstreken. The brick- and semi-paved track had a length of 28.57 km (17.75 mi). The winner was Piet van Wijngaarden on a 500 cc Norton with an average speed of 91.4 km/h (56.8 mph). From 1926 on the Dutch TT was held at Assen on a street circuit through De Haar, Barteldsbocht, Oude Tol, Hooghalen, Laaghalen and Laaghalerveen.
In 1951 the Italian Umberto Masetti took the record on a 500 cc Gilera with an average speed of 162.35 km/h (100.88 mph). In 1954, Geoff Duke of Great Britain reached 170.69 km/h (106.06 mph). The circuit remained unchanged until 1955, when a whole new circuit was built by using a third of the original street circuit, joined with purpose-built sections, but less than a third of the length and much more like a modern road racing circuit.
In the period of 1999–2002, the circuit invested millions in upgrades. In 1999, the circuit management placed a new main grandstand and hospitality buildings. In 2000, a new Race Control tower was built, as well as 34 newly equipped pit boxes, a new media and medical centre. Between September 2001 and April 2002, another 9 million Euro's is spent on the enlargement of the paddock area from 40 to 60.000 square metres. This upgrade meant that the Veenslang and Ruskenhoek corners had to be altered. The main straight has also moved about 50 metres eastwards and a new two-lane tunnel now connects the paddock with the main entrance road and the media accreditation / welcome centre. The Mandeveen and Duikersloot corners have been moved back by 10 metres to accommodate larger run-offs and gravel beds at the southern part of the circuit. That part of the track has also been resurfaced with new asphalt. In total, the circuit has been shortened from 6.049 km (3.759 mi) to 6.027 km (3.745 mi). The total amount of costs on these upgrades is 23 million Euro's.[1]
In 2005, the grandstand at the Geert Timmer corner was slightly altered. In order to improve the gravel run-off length, the grandstand was made in a 'floating' manner to accommodate the extra space that was needed. The lay-out of the circuit was also slightly altered.[2]
The circuit was fundamentally redesigned again in 2006, becoming the so-called A-Style Assen TT Circuit. All alterations aside, only one section of the circuit is original; the finish line never moved. On 21 September 2009 it was announced that a new chicane will be added, after a request from the A1GP organization,[3] however A1GP was unable to start the 2009–2010 season and as a substitute the Superleague Formula replaced A1GP.
Assen race track was built in 1955, and initially had a length of 7.705 km (4.788 mi). The current track has a length of 4.555 km (2.830 mi) with the mixture of super fast flat-out and slow corners. The longest straight is 560 m (1,840 ft).[4] The curves in Assen were traditionally banked and the surface is extremely grippy, so the riders were able to drive much faster on the course than other circuits. Today these sloped or curved bends have been modified due to safety issues.
On 6 July 2004, the organisation announced plans for an amusement park located to the north of the track. In 2006 the northern loop was removed and the length was shortened to 4.555 km (2.830 mi). The new centre is expected to be visited by 300,000 people, and the total investment is approximately €85 million.
The official fastest race lap records at the TT Circuit Assen are listed as:
Category | Time | Driver | Vehicle | Event |
---|---|---|---|---|
Motorcycle Circuit: 4.542 km (2010–present) | ||||
MotoGP | 1:32.500 | Aleix Espargaró | Aprilia RS-GP | 2022 Dutch TT |
World SBK | 1:33.620[5] | Álvaro Bautista | Ducati Panigale V4 R | 2022 Assen World SBK round |
BSB | 1:36.330[6] | Leon Haslam | Kawasaki Ninja ZX-10RR | 2018 Assen BSB round |
Moto2 | 1:36.690 | Raúl Fernández | Kalex Moto2 | 2021 Dutch TT |
World SSP | 1:37.688[7] | Dominique Aegerter | Yamaha YZF-R6 | 2021 Assen World SSP round |
Moto3 | 1:41.190 | John McPhee | Husqvarna FR250GP | 2022 Dutch TT |
MotoE | 1:43.086 | Eric Granado | Energica Ego | 2022 Dutch TT |
Supersport 300 | 1:49.055[8] | Koen Meuffels | Kawasaki Ninja 400 | 2021 Assen Supersport 300 round |
Northern Talent Cup | 1:51.112[9] | Jurrien van Crugten | KTM 250 FRR | 2022 Northern Talent Cup Dutch Round |
Grand Prix Circuit: 4.555 km (2006–present) | ||||
Formula One | 1:18.298 | Ingo Gerstl | Toro Rosso STR1 | 2018 Assen BOSS GP Series round |
Champ Car | 1:20.727 | Dan Clarke | Panoz DP01 | 2007 Bavaria Champ Car Grand Prix |
Superleague Formula | 1:23.547 | Yelmer Buurman | Panoz DP09 | 2010 Assen Superleague Formula round |
Class 1 Touring Cars | 1:26.123[10] | Fabio Scherer | Audi RS5 Turbo DTM 2020 | 2020 Assen DTM round |
FA1 | 1:26.831[11] | Dani Clos | Lola B05/52 | 2014 Acceleration in Assen |
Formula 3 | 1:31.903[12] | Markus Pommer | Dallara F306 | 2011 2nd Assen German F3 round |
GT3 | 1:33.743[13] | Mike Rockenfeller | Audi R8 LMS Evo | 2021 Assen DTM round |
Formula Renault 2.0 | 1:34.963[14] | Gilles Magnus | Tatuus FR2.0/13 | 2017 Assen Formula Renault NEC round |
W Series | 1:35.384 | Emma Kimiläinen | Tatuus F.3 T-318 | 2019 Assen W Series round |
MotoGP | 1:36.558 | Valentino Rossi | Yamaha YZR-M1 | 2009 Dutch TT |
Formula 4 | 1:38.474[15] | Michael Belov | Tatuus F4-T014 | 2018 Assen SMP F4 round |
World SBK | 1:38.680 | Noriyuki Haga | Ducati 1098R | 2009 Assen World SBK round |
250cc | 1:40.340 | Álvaro Bautista | Aprilia RSA 250 | 2008 Dutch TT |
ADAC Formel Masters | 1:40.409[16] | Dennis Vollmair | Dallara Formulino | 2009 Assen ADAC Formel Masters round |
World SSP | 1:40.836 | Cal Crutchlow | Yamaha YZF-R6 | 2009 Assen World SSP round |
125cc | 1:45.098 | Sergio Gadea | Aprilia RS125R | 2006 Dutch TT |
TCR Touring Car | 1:45.592[17] | Attila Tassi | Honda Civic Type R TCR (FK8) | 2018 Assen TCR Europe round |
Truck racing | 2:10.057[18] | Antonio Albacete | MAN TGS | 2009 Assen ETRC round |
Grand Prix Circuit: 5.997 km (2005) | ||||
MotoGP | 2:00.991 | Valentino Rossi | Yamaha YZR-M1 | 2005 Dutch TT |
World SBK | 2:04.685[19] | Chris Vermeulen | Honda CBR1000RR | 2005 Assen World SBK round |
250cc | 2:05.191 | Sebastián Porto | Aprilia RSV 250 | 2005 Dutch TT |
World SSP | 2:08.865[20] | Katsuaki Fujiwara | Honda CBR600RR | 2005 Assen World SSP round |
125cc | 2:13.536 | Héctor Faubel | Aprilia RS125R | 2005 Dutch TT |
National Circuit: 3.851 km (2005) | ||||
Formula 3 | 1:18.602[21] | Martin Hippe | Dallara F303 | 2005 Assen German F3 round |
Truck racing | 1:52.800[22] | Markus Oestreich | Volkswagen Titan | 2005 Assen ETRC round |
Grand Prix Circuit: 6.027 km (2002–2004) | ||||
MotoGP | 1:59.472 | Valentino Rossi | Yamaha YZR-M1 | 2004 Dutch TT |
World SBK | 2:02.395[23] | Colin Edwards | Honda VTR1000SP2 | 2002 Assen World SBK round |
250cc | 2:03.469 | Dani Pedrosa | Honda RS250R | 2004 Dutch TT |
World SSP | 2:06.922[24] | Katsuaki Fujiwara | Suzuki GSX600R | 2003 Assen World SSP round |
125cc | 2:10.123 | Jorge Lorenzo | Derbi RSA 125 | 2004 Dutch TT |
National Circuit: 3.904 km (2002–2004) | ||||
Formula 3 | 1:15.928[25] | Thomas Holzer | Dallara F302 | 2004 Assen German F3 round |
Grand Prix Circuit: 6.049 km (1984–2001) | ||||
500cc | 2:02.471 | Tadayuki Okada | Honda NSR500 | 1999 Dutch TT |
World SBK | 2:03.914[26] | Carl Fogarty | Ducati 996 RS | 1999 Assen World SBK round |
250cc | 2:05.696 | Valentino Rossi | Aprilia RSV 250 | 1999 Dutch TT |
World SSP | 2:08.748[27] | James Whitham | Yamaha YZF-R6 | 2001 Assen World SSP round |
125cc | 2:13.225 | Noboru Ueda | Honda RS125R | 1999 Dutch TT |
80cc | 2:30.790 | Ian McConnachie | Krauser 80 | 1986 Dutch TT |
National Circuit: 3.919 km (1981–2001) | ||||
World SBK | 1:23.110[28] | Raymond Roche | Ducati 888 SBK | 1992 Assen World SBK round |
Grand Prix Circuit: 7.685 km (1981–1983) | ||||
500cc | 2:47.470 | Kenny Roberts | Yamaha YZR500 | 1983 Dutch TT |
250cc | 2:57.790 | Carlos Lavado | Yamaha TZ 250 | 1983 Dutch TT |
125cc | 3:05.620 | Ángel Nieto | Garelli 125 GP | 1983 Dutch TT |
50cc | 3:24.870 | Eugenio Lazzarini | Garelli 50 GP | 1983 Dutch TT |
Grand Prix Circuit: 7.717 km (1976–1980) | ||||
500cc | 2:54.500 | Virginio Ferrari | Suzuki RG 500 | 1979 Dutch TT |
350cc | 3:02.500 | Patrick Fernandez | Yamaha TZ 350 | 1977 Dutch TT |
250cc | 3:02.800 | Kork Ballington | Kawasaki KR250 | 1979 Dutch TT |
125cc | 3:13.200 | Ángel Nieto | Minarelli 125 GP | 1979 Dutch TT |
50cc | 3:33.500 | Eugenio Lazzarini | Kreidler 50 GP | 1977 Dutch TT |
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