is a velodrome located in Tachikawa, Tokyo that conducts pari-mutuel Keirin racing - one of Japan's four authorized where gambling is permitted. Its Keirin identification number for betting purposes is 28# (28 sharp).
Tachikawa's oval is 400 meters in circumference. A typical keirin race of 2,025 meters consists of five laps around the course.
The Tokyo-based Tachikawa is one of professional keirin racing's major velodromes, often hosting its biggest race, the Keirin Grand Prix.