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| Location | Mimasaka, Okayama Prefecture, Japan |
|---|---|
| Time zone | UTC+09:00 |
| Coordinates | 34°54′54″N 134°13′16″E / 34.91500°N 134.22111°E |
| FIA Grade | 2 |
| Owner | Aska Corporation (March 2012–present) Unimat Corporation (April 2004–March 2012) Tanaka International (November 1990–April 2004) |
| Broke ground | 1989 |
| Opened | 18 November 1990 |
| Former names | TI Circuit Aida (November 1990–April 2005) |
| Major events | Current: Super GT (1999–2019, 2021–present) GT World Challenge Asia (2022–present) Japan Cup Series (2022–present) FRJC (2020–present) Super Formula Lights (1994–1995, 1998–2020, 2022–present) Former: Formula One Pacific Grand Prix (1994–1995) WTCC Race of Japan (2008–2010) Super Formula (2007–2008, 2015–2020) Formula BMW Pacific (2009–2010) Formula V6 Asia (2008) Japan Le Mans Challenge (2006–2007) |
| Website | http://www.okayama-international-circuit.jp/ |
| Grand Prix Circuit (1990–present) | |
| Length | 3.703 km (2.300 miles) |
| Turns | 13 |
| Race lap record | 1:14.023 ( Michael Schumacher, Benetton B194, 1994, F1) |
| Motorcycle Circuit (2020–present) | |
| Length | 3.747 km (2.328 miles) |
| Turns | 17 |
| Race lap record | 1:29.889 ( Yuki Okamoto, Yamaha YZF-R1, 2024, SBK) |
| Piper Circuit (1990–present) | |
| Length | 1.956 km (1.221 miles) |
| Turns | 8 |
| Company type | Kabushiki gaisha |
|---|---|
| Founded | Aida (part of Mimasaka), Okayama Prefecture, Japan (August 13, 1988) |
| Headquarters | Mimasaka, Okayama Prefecture, Japan |
| Parent | Aska Corporation[1] |
Okayama International Circuit (岡山国際サーキット), formerly known as TI Circuit Aida (TIサーキット英田) before 2005, is a 3.703 km (2.301 mi) private motorsport race track in Mimasaka, Okayama Prefecture, Japan. TI was the abbreviation of "Tanaka International" after the name of the golf club owner, Hajime Tanaka, though the name of the circuit was officially "TI Circuit Aida".
As well as hosting racing events, the circuit has rental facilities including bikes and go karts available.
- ^ 株式会社岡山国際サーキットの株式取得（子会社化）についてのお知らせ [We resolved on the acquiation of whole stock in Okayama International Circuit Co., Ltd.] (PDF) (Press release) (in Japanese). Aska Corporation. March 12, 2012. Archived from the original (PDF) on September 21, 2013. Retrieved April 24, 2012.