| http://www.w3.org/ns/prov#value | - In all races that are not run in lanes the start line must be curved, so that all the athletes start the same distance from the finish.[100] Starting blocks may be used for all races up to and including 400 m (including the first leg of the 4 x 100 m and 4 x 400 m) and may not be used for any other race.
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