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Tsukuba Circuit (Japanese: 筑波サーキット, Tsukuba Sа̄kitto) is a motorsport race track located in Shimotsuma, a neighboring city of Tsukuba, Ibaraki Prefecture, Japan, about 60 km (37 mi) north of central Tokyo. It is 2.045 km (1.271 mi) long, with 32 pit garages and a 437 m (0.272 mi) long back straight.[1] There is a small chicane used only for motorcycle racing that increases the track's total length to 2.070 km (1.286 mi).

Tsukuba Circuit

Location	Shimotsuma, Ibaraki, Japan
Time zone	JST
Capacity	8,500
Broke ground	1966
Opened	22 June 1970; 52 years ago (1970-06-22)
Major events	MFJ Superbike Tsukuba 1000 Tsukuba Time Attack
Car Circuit (1970–present)
Length	2.045 km (1.271 miles)
Turns	12
Bike Circuit (1990–present)
Length	2.070[1] km (1.286 miles)
Turns	13

The track was established in 1966 with the aim of attracting young people to participate in motor sports, but was not actually completed until 1970.[2] At the present time, an event is held every week.[3] The track has a large variety of corners, ranging from wide sweepers to hairpins.[2] The circuit accommodates 8500 spectators on the track, 3000 in the stands, 5000 on lawn seats, and 500 standing over the pits.[2]

The illustration of the course guide shows that there are various courses other than the main course.

• Course 1000

In 2001, the minibike course that had been called the "East Course" was completely renovated and opened as Course 1000 (TC1000), which is almost 1,000 meters in circumference. The TC1000 is a safe course that is open to cars and motorcycles, and features excellent visibility, making it ideal for beginners.

• Gymkhana track

The trapezoid-shaped area just outside the last corner of the main course is the Gymkhana track. Gymkhana is a popular motor sport in Japan, and the All Japan Gymkhana Championships are held by JAF. Practice sessions and Gymkhana competitions are held at the Gymkhana track.

• Oval Course

The Oval Course, located between the first corner and the second hairpin of the main course, is a course for training Auto Race drivers. Auto Race is a unique form of public gambling motor sport in Japan.

Admission is free on weekdays and ¥500 on weekends, but only when there are no scheduled events. Visitors are allowed to drive on the track with a license. Tsukuba Circuit is not convenient to public transportation, so it is best accessed by a private car. The nearest station can only provide access via lengthy taxi ride.

Time Attack

Tsukuba's "Time Attack" event (alternatively known as Super Lap or Tuner Battles) originated in Japan when the tuning media organized the event on race circuits such as Tsukuba, as a proving ground for street tuned cars built at a large budget by highly respected tuning companies. As a result of the quick rise in popularity, tuners developed specialized cars to beat the competition,[4] including the purpose-built HKS CT230R Lancer Evolution with a body made entirely out of carbon fibre.

Unlike other timed motorsport disciplines such as sprinting and hillclimbing, the car is required to start off under full rolling start conditions following a warm-up lap, where they will have to accelerate out as fast as possible to determine how fast they enter their timed lap.[4] Commonly, as competing cars consist of modified road-going models, they are required to wear tires authorized for road use. In all, drivers are allocated to three laps in a final event run; warm-up, timed and cool-down.[4]

Rankings

The following is a table of best Time Attack times, last updated 11 April 2022:

Pos	Team	Car	Best lap (sec)	Top speed (km/h)
1	HKS with Nobuteru Taniguchi	Toyota 86 TRB-03 (slicks)	49.445	238.253[5][6] [7]
2	Escort Drag Racing Service	Mitsubishi Lancer Evolution IX	50.342	---.--- [8]
3	Scorch Racing with Under Suzuki	Nissan Silvia (S15)	50.366	245.622[9]
4	Top Fuel Drag & Street Shop	Honda S2000 (AP1)	51.762	233.080[10]
5	Garage G-Force	Mitsubishi Lancer Evolution VIII	52.391	223.927
6	Racing Factory AutoBahn	Toyota Soarer (JZZ30)	52.454	248.447[11]
7	Vibrant Performance with PZ Tuning	Honda Civic (FG4)	53.071	237.781[12]
8	Esprit	Honda NSX (NA1)	53.474	239.734[13]
9	Car Shop Dream KJM with Voltex	Mazda RX-7 (FD3S)	53.489	225.894
10	HKS	Mitsubishi Lancer Evolution IX CT230R	53.589	228.xxx[14]
11	Revolution	Mazda RX-7 (FD3S)	53.673	225.894[15]
12	Friends Racing	Nissan Silvia (S15)	53.821	223.602
13	Kyushu Danji	Honda NSX (NA2)	54.101	222.635[16]
14	DLanguage	Subaru Impreza (GRB) R205	54.115	225.282
15	Admix Racing Service with Seyamax	Nissan Skyline GT-R (BNR32)	54.118	221.584[17]
16	Autech Tsukada (ATTKD)	Nissan Skyline GT-R (BNR32)	54.145	232.909[18]
17	Sakamoto Engineering	Mazda RX-7 (FD3S)	54.252	225.282[19]
18	Sun Automobile with Garage HRS	Mitsubishi Lancer Evolution VII CyberEVO	54.392	---.---
19	M Speed	Nissan Skyline GT-R (BNR34)	54.481	229.348
20	Endless	Mazda RX-7 (FD3S)	54.483	212.014[20]
21	Top Fuel Racing	Mazda RX-7 (FD3S)	54.585	224.439

In popular culture

Tsukuba Circuit has appeared in numerous video games, including iRacing, Forza Motorsport, 2, 3, and 4, Gran Turismo 4, PSP, 5, 6, 7 and Sport, Tourist Trophy, Enthusia Professional Racing, rFactor, and D1 Grand Prix.

The track is commonly used for tuner events and has appeared in the final installment of the Shuto Kousoku Trial series, SKT Max. The circuit has also gained popularity because of its use by Best Motoring to test and race a variety of vehicles.

References

External links

• Official Webpage (Japanese)
• Tsukuba Circuit on Google Maps

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