(a) Length: 50 m.
(b) Width: 21 m minimum with two spaces for each of 50 cm between the outside lane and the bath side walls. Lane width 2.5 m, total 8 lanes.
(c) Depth: 1.8 m overall which allows water polo matches to be played in the same bath.
(d) Floats on lane ropes: Circumference 0.05 to 0.11 m.
(e) Lane markings of a contrasting dark colour are set on the floor of the pool in the centre of each lane to guide competitors.
(g) Starting platform: It may be from 0.5 to 0.75 m above the surface of water. The surface area of each platform must be 0.5 x 0.5 m with a maximum slope of not more than 10. Surface of each block must be covered with non slip material with back stroke hand grip facility.
Men have to wear swimming trunks and women one-piece non-transparent swimming trunks with no open work except at the back. Caps and goggles may be worn, if desired.
The regulations for international competitions for judges are as follows:
(b) Two starters
(c) Chief Time-keeper
(d) Three Time-keepers per lane
(e) Chief Judge
(j) Three finish judges per lane
(g) Inspector of turns (one at each end of the lane)
(h) Four stroke judges
The referee has complete control of the races. He may even disqualify a competitor for a infringement. It is obligatory to use electronic equipment for time-keeping at the Olympic Games.
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