The competition area is a minimum of 14m x 14m and a maximum of 16m x 16m and is covered by tatamis or similarly acceptable green material. The competition area is divided into two zones. The contest area is a minimum of 8m x 8m or a maximum of 10m x 10m. Surrounding the contest area is a 1m wide danger zone. The safety area outside the danger zone is 3m wide.
The competition area must be fixed to a resilient floor or platform. Where two or more adjoining competition areas are used, a common safety area of between 3m and 4m is necessary. A free zone of 50cm must be maintained around the competition area.
A strip of blue and a strip of white adhesive tape, 10cm wide and 50cm long, are fixed on the centre of the contest area 4m apart. This is the starting position at which the contestants must start and end the contest. The blue tape is fixed to the referee’s right and the white to his left.