Track and field centre of the stadium. The shot put features a circular throwing area with a toe board at one end. The throwing area is a sector. Some stadia also have a water jump area on one side of the field specifically for steeplechase races. Basic indoor venues may be adapted gymnasiums, which can easily accommodate high jump competitions and short track events. Full-size indoor arenas (i.e. those fully equipped to host all events for the World Indoor Championships) bear similarities with their outdoor equivalents. Typically, a central area is surrounded by a 200-metre oval track with four to eight lanes. The
USA Outdoor Track and Field Championships Olympic years and yards for other years, except 1933 to 1951 inclusive and 1959. Note that the track surface changed over these years. Synthetic tracks were used in the men's editions in 1963 (rubber), 1965, 1969, 1971, 1972 and from 1974 on. The tracks in the other years were cinders, sometimes with a mix of brick (1967, 1970 and 1973). USA Outdoor Track and Field Championships The USA Outdoor Track and Field Championships is an annual track and field competition organized by USA Track & Field, which serves as the American national championships for the sport. Since 1992, in years