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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.

TT Circuit Assen


Configuration for automobile racing

Configuration for motorcycle racing
LocationAssen, Netherlands
Time zoneCET (UTC+1)
CEST (DST)
Coordinates52°57′42″N 6°31′24″E
Capacity110,000
FIA Grade2
OwnerStichting Circuit van Drenthe
Opened1925 (Van Drenthe street circuit)
1955 (modern circuit)
Closed1954 (for street circuit)
Major eventsCurrent:
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)
Length4.555 km (2.831 miles)
Turns18 (12 right, 6 left)
Race lap record1:18.298 (Ingo Gerstl, Toro Rosso STR1, 2018, F1)
Motorcycle Circuit (2010–present)
Length4.542 km (2.822 miles)
Turns18 (12 right, 6 left)
Race lap record1:32.500 (Aleix Espargaró, Aprilia RS-GP, 2022, MotoGP)
Grand Prix Circuit (2005)
Length5.997 km (3.726 miles)
Race lap record2:00.991 (Valentino Rossi, Yamaha YZR-M1, 2005, MotoGP)
National Circuit (2005)
Length3.851 km (2.393 miles)
Race lap record1:18.602 (Martin Hippe, Dallara F303, 2005, F3)
Grand Prix Circuit (2002–2004)
Length6.027 km (3.745 miles)
Race lap record1:59.472 (Valentino Rossi, Yamaha YZR-M1, 2004, MotoGP)
National Circuit (2002–2004)
Length3.904 km (2.426 miles)
Race lap record1:15.928 (Thomas Holzer, Dallara F302, 2004, F3)
Grand Prix Circuit (1984–2001)
Length6.049 km (3.759 miles)
Race lap record2:02.471 (Tadayuki Okada, Honda NSR500, 1999, 500cc)
National Circuit (1981–2001)
Length3.919 km (2.435 miles)
Race lap record1:23.110 (Raymond Roche, Ducati 888 SBK, 1992, World SBK)
Grand Prix Circuit (1981–1983)
Length7.685 km (4.775 miles)
Race lap record2:47.470 (Kenny Roberts, Yamaha YZR500, 1983, 500cc)
Grand Prix Circuit (1976–1980)
Length7.717 km (4.796 miles)
Race lap record2:54.500 (Virginio Ferrari, Suzuki RG 500, 1979, 500cc)
Grand Prix Circuit (1955–1975)
Length7.700 km (4.785 miles)
Van Drenthe Circuit (1926–1954)
Length16.536 km (10.275 miles)
Original Circuit (1925)
Length28.400 km (17.650 miles)
Websitewww.tt-assen.com

History


Training session in front of the grandstand
Training session in front of the grandstand
Panoramic view of the TT Circuit Assen
Panoramic view of the TT Circuit Assen

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.


Layout history



Current racetrack


Main straight.
Main straight.

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.


Innovation


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.


Lap records


The official fastest race lap records at the TT Circuit Assen are listed as:

CategoryTimeDriverVehicleEvent
Motorcycle Circuit: 4.542 km (2010–present)
MotoGP1:32.500Aleix EspargaróAprilia RS-GP2022 Dutch TT
World SBK1:33.620[5]Álvaro BautistaDucati Panigale V4 R2022 Assen World SBK round
BSB1:36.330[6]Leon HaslamKawasaki Ninja ZX-10RR2018 Assen BSB round
Moto21:36.690Raúl FernándezKalex Moto22021 Dutch TT
World SSP1:37.688[7]Dominique AegerterYamaha YZF-R62021 Assen World SSP round
Moto31:41.190John McPheeHusqvarna FR250GP2022 Dutch TT
MotoE1:43.086Eric GranadoEnergica Ego2022 Dutch TT
Supersport 3001:49.055[8]Koen MeuffelsKawasaki Ninja 4002021 Assen Supersport 300 round
Northern Talent Cup1:51.112[9]Jurrien van CrugtenKTM 250 FRR2022 Northern Talent Cup Dutch Round
Grand Prix Circuit: 4.555 km (2006–present)
Formula One1:18.298Ingo GerstlToro Rosso STR12018 Assen BOSS GP Series round
Champ Car1:20.727Dan ClarkePanoz DP012007 Bavaria Champ Car Grand Prix
Superleague Formula1:23.547Yelmer BuurmanPanoz DP092010 Assen Superleague Formula round
Class 1 Touring Cars1:26.123[10]Fabio SchererAudi RS5 Turbo DTM 20202020 Assen DTM round
FA11:26.831[11]Dani ClosLola B05/522014 Acceleration in Assen
Formula 31:31.903[12]Markus PommerDallara F3062011 2nd Assen German F3 round
GT31:33.743[13]Mike RockenfellerAudi R8 LMS Evo2021 Assen DTM round
Formula Renault 2.01:34.963[14]Gilles MagnusTatuus FR2.0/132017 Assen Formula Renault NEC round
W Series1:35.384Emma KimiläinenTatuus F.3 T-3182019 Assen W Series round
MotoGP1:36.558Valentino RossiYamaha YZR-M12009 Dutch TT
Formula 41:38.474[15]Michael BelovTatuus F4-T0142018 Assen SMP F4 round
World SBK1:38.680Noriyuki HagaDucati 1098R2009 Assen World SBK round
250cc1:40.340Álvaro BautistaAprilia RSA 2502008 Dutch TT
ADAC Formel Masters1:40.409[16]Dennis VollmairDallara Formulino2009 Assen ADAC Formel Masters round
World SSP1:40.836Cal CrutchlowYamaha YZF-R62009 Assen World SSP round
125cc1:45.098Sergio GadeaAprilia RS125R2006 Dutch TT
TCR Touring Car1:45.592[17]Attila TassiHonda Civic Type R TCR (FK8)2018 Assen TCR Europe round
Truck racing2:10.057[18]Antonio AlbaceteMAN TGS2009 Assen ETRC round
Grand Prix Circuit: 5.997 km (2005)
MotoGP2:00.991Valentino RossiYamaha YZR-M12005 Dutch TT
World SBK2:04.685[19]Chris VermeulenHonda CBR1000RR2005 Assen World SBK round
250cc2:05.191Sebastián PortoAprilia RSV 2502005 Dutch TT
World SSP2:08.865[20]Katsuaki FujiwaraHonda CBR600RR2005 Assen World SSP round
125cc2:13.536Héctor FaubelAprilia RS125R2005 Dutch TT
National Circuit: 3.851 km (2005)
Formula 31:18.602[21]Martin HippeDallara F3032005 Assen German F3 round
Truck racing1:52.800[22]Markus OestreichVolkswagen Titan2005 Assen ETRC round
Grand Prix Circuit: 6.027 km (2002–2004)
MotoGP1:59.472Valentino RossiYamaha YZR-M12004 Dutch TT
World SBK2:02.395[23]Colin EdwardsHonda VTR1000SP22002 Assen World SBK round
250cc2:03.469Dani PedrosaHonda RS250R2004 Dutch TT
World SSP2:06.922[24]Katsuaki FujiwaraSuzuki GSX600R2003 Assen World SSP round
125cc2:10.123Jorge LorenzoDerbi RSA 1252004 Dutch TT
National Circuit: 3.904 km (2002–2004)
Formula 31:15.928[25]Thomas HolzerDallara F3022004 Assen German F3 round
Grand Prix Circuit: 6.049 km (1984–2001)
500cc2:02.471Tadayuki OkadaHonda NSR5001999 Dutch TT
World SBK2:03.914[26]Carl FogartyDucati 996 RS1999 Assen World SBK round
250cc2:05.696Valentino RossiAprilia RSV 2501999 Dutch TT
World SSP2:08.748[27]James WhithamYamaha YZF-R62001 Assen World SSP round
125cc2:13.225Noboru UedaHonda RS125R1999 Dutch TT
80cc2:30.790Ian McConnachieKrauser 801986 Dutch TT
National Circuit: 3.919 km (1981–2001)
World SBK1:23.110[28]Raymond RocheDucati 888 SBK1992 Assen World SBK round
Grand Prix Circuit: 7.685 km (1981–1983)
500cc2:47.470Kenny RobertsYamaha YZR5001983 Dutch TT
250cc2:57.790Carlos LavadoYamaha TZ 2501983 Dutch TT
125cc3:05.620Ángel NietoGarelli 125 GP1983 Dutch TT
50cc3:24.870Eugenio LazzariniGarelli 50 GP1983 Dutch TT
Grand Prix Circuit: 7.717 km (1976–1980)
500cc2:54.500Virginio FerrariSuzuki RG 5001979 Dutch TT
350cc3:02.500Patrick FernandezYamaha TZ 3501977 Dutch TT
250cc3:02.800Kork BallingtonKawasaki KR2501979 Dutch TT
125cc3:13.200Ángel NietoMinarelli 125 GP1979 Dutch TT
50cc3:33.500Eugenio LazzariniKreidler 50 GP1977 Dutch TT

Events


Current
Former

See also



References


  1. Sports, Dorna. "TT Circuit Assen invests € 9 million in safety, paddock-area and new asphalt | MotoGP™". www.motogp.com.
  2. Sports, Dorna. "Safety upgrades | MotoGP™". www.motogp.com.
  3. (in Dutch) Dagblad van het Noorden Archived 17 July 2011 at the Wayback Machine
  4. "Assen overview". netherlodger.com.
  5. "World SBK Motul Dutch Round, 22-24 April 2022 Results Tissot Superpole Race" (PDF). Retrieved 24 April 2022.
  6. "2018 Assen British Superbike Statistics". Retrieved 24 April 2022.
  7. "World SSP Prosecco DOC Dutch Round, 23-25 July 2021 Results Race 1" (PDF). Retrieved 25 July 2021.
  8. "Supersport 300 Prosecco DOC Dutch Round, 23-25 July 2021 Results Race 2" (PDF). Retrieved 25 July 2021.
  9. "Northern Talent Cup Dutch Round" (PDF). Retrieved 21 October 2022.
  10. "2020 DTM Assen Statistics". Retrieved 15 March 2021.
  11. "2014 Assen Acceleration FA1". Retrieved 13 June 2021.
  12. "2011 Assen German F3". Retrieved 24 April 2022.
  13. "2021 DTM Assen Race 2 Statistics". Retrieved 19 September 2021.
  14. "2017 Formula Renault Northern Cup Assen (Race 2)". Retrieved 5 July 2022.
  15. "HANKOOK Finalerace Assen 2018 NEZ F4 Final Results Race 1" (PDF). Retrieved 5 January 2022.
  16. "2009 Assen ADAC Masters Weekend Formel ADAC Race 2" (PDF). Retrieved 27 July 2022.
  17. "2018 TCR Europe Assen". Retrieved 18 May 2021.
  18. "ADAC Masters Weekend FIA European TRC - Championship Race 3". Retrieved 19 July 2022.
  19. "Assen 2-3-4 September, 2005 Superbike - Results Race 1" (PDF). Retrieved 27 April 2021.
  20. "Assen 2-3-4 September, 2005 Supersport - Results Race" (PDF). Retrieved 27 April 2021.
  21. "2005 Assen German F3 - Round 14". Retrieved 26 May 2022.
  22. "DKV Dutch Truck Grand Prix Super Race Trucks - Race 2 SRT/RT". Retrieved 19 July 2022.
  23. "2002 Superbike World Championship Assen Session Facts". Retrieved 27 April 2021.
  24. "Assen 5-6-7 September, 2003 Supersport - Results Race" (PDF). Retrieved 27 April 2021.
  25. "2004 Assen German F3". Retrieved 26 May 2022.
  26. "1999 Superbike World Championship Assen Statistics". Retrieved 27 April 2021.
  27. "ASSEN - 7-8-9 September, 2001 Results Aggregate". Archived from the original on 7 February 2015. Retrieved 12 November 2021.
  28. "1992-09-11 to 1992-09-13 World Superbike Dutch Round Race 2". Retrieved 13 June 2022.





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