Running Track Infield Turf: 10,346 m² and 85 Rolls
Inside the kerb a standard 400 m track holds 10,346 m², or 85 rolls of 5 × 25 m with rolls laid across the 73 m width. That area is running track infield turf, and it is not the 84.39 by 73 m rectangle, which holds only 6,160 m². The other 4,185 m² lies in ...
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