A standard outdoor running track has a length of 400 meters, with two bends and two parallel straights, both radii of which are equal. Typically, the inside area of the track accommodates all throwing events and a standard soccer pitch of 68 by 105 meters. The track comprises two semi-circles with a radius of 36.5 meters each. The semi-circles are joined by two straights measuring 84.39 meters long. A standard indoor track has the same dimensions as the outdoor track, but is only 200 meters in length.
The standard 400-meter oval track has a minimum width of 72 meters. According to the IAAF, the standard running track includes an oval track with a minimum of four lanes and safety zones measuring at least 1 meter on the inside and outside. Lanes must have a width of 1.22 meters and marked by white lines 5 cm wide.
100 Meter Start
The 100-meter race is run on the "straight" portion of the running track, on its side. The 100 meter is measured from the finish line's edge to the finish line straight up the track, without a curve. According to the IAAF, the straight race has a starting area of 3 meters minimum, with a run-out of 17 meters minimum.
International Association of Athletics Federations
The IAAF sets the standards and dimensions for running tracks used in elite and global competitions. IAAF also sets the minimum standards for a running track when setting world record performances. Though local running tracks may not adhere to IAAF dimensions, the IAAF standards are still a useful point of reference when it comes to comparing dimensions of running tracks.