Track and field is a sport which combines various athletic contests based on the skills of running, jumping, and throwing. The name is derived from the sport's typical venue: a stadium with an oval running track enclosing a grass field where the throwing and jumping events take place. It is one of the oldest sports. In ancient times, it was an event held in conjunction with festivals and sports meets such as the Ancient Olympic Games in Greece.
The running events, which include sprints, middle and long-distance events, and hurdling, are won by the athlete with the fastest time. The jumping and throwing events are won by the athlete who achieves the greatest distance or height. Regular jumping events include long jump, triple jump, high jump and pole vault, while the most common throwing events are shot put, javelin, discus and hammer. There are also "combined events", such as heptathlon and decathlon, in which athletes compete in a number of the above events. Most track and field events are individual sports with a single victor, but a number are relay races. Events are almost exclusively divided by gender, although both the men's and women's competitions are usually held at the same venue.
An all-weather running track is a rubberized artificial running surface for track and field athletics. It provides a consistent surface for competitors to test their athletic ability unencumbered by adverse weather conditions. Historically, various forms of dirt, grass, sand and crushed cinders were used. Many examples of these varieties of track still exist worldwide.
The proper length for a competitive running track is 400 m (1,312.3 ft). Some tracks are not built to this specification, instead some are legacy to imperial distances like 440 yd (402.3 m). Prior to rule changes in 1979, distances in Imperial units were still used in the United States. Some facilities build tracks to fit the available space. Olympic tracks in the early 20th century were of other lengths. Each lane of the track could (by IAAF rules should) be as wide as 122 cm (4.00 ft), though the majority of American tracks are built to NFHS high school specifications that allow smaller lanes. The IAAF also specifies a preferred radius for the turns at 37 metres, but allows a range. Major international level meets are conducted and world records are allowed to be set on tracks that are not exactly 37 metres, but do fall in the range.