There are two seasons for track and field. There is an indoor season, run during the winter and an outdoor season, run during the spring. Most indoor tracks are 200 meters and consist of four to six lanes. There are also some 150 meter indoor tracks, and others as small as 120 meters have been used. Some "oversize tracks" (larger than 200 meters) are popular for American collegiate athletics despite the fact that they are not considered valid for setting indoor records. Often an indoor track will have banked turns to compensate for the tight radius of the turns. The banking can help prevent injuries to the athlete, while also promoting higher speeds
In an indoor track meet athletes contest the same track events as at an outdoor meet, with the exception of the 100 m and 110 m/100 m hurdles (replaced by the 55 or 60 m sprint and 55 or 60 m hurdles at most levels, or the 45 m sprint and hurdles at the high school level), the 10,000 m run, 3,000 m steeplechase, 400 m hurdles. Indoor meets also have the addition of a 3,000 m run normally at both the collegiate and elite level, instead of the 10,000 m. The 5,000 m is the longest event commonly run indoors, although there are situations where longer distances have been raced
In field events, indoor meets only feature the high jump, pole vault, long jump, triple jump, and shot put (weight throw). Due to space limitations, these events take place on the infield, within the circumferential track. The longer throws of javelin, hammer and discus are added only for outdoor meets, as there is normally not enough space in an indoor stadium to house these events.
The outdoor track and field season usually begins in the spring and lasts through the summer. Most tracks are ovals of 400 meters in circumference. Modern "tartan tracks" or more recently "mondo tracks" are made with a rubberized surface; older tracks were cinder-covered. Tracks normally consist of 6-10 lanes (up to 12 lanes on the 'front' straight) and many include a steeplechase lane with a water pit on one of the turns. This steeplechase pit can be placed either inside or outside the track, making for a tighter turn or a wider turn. It is common that tracks will surround a playing field used for American football, football (soccer), or lacrosse. This inner field is usually known as the infield and has a surface of either grass or artificial turf.
All field events can be contested on the infield. However the javelin, hammer and discus throws are sometimes contested on fields outside of the track stadium because they take up a large amount of space, the implements may damage the infield, and the implements could end up landing on the track. However, some infields are used specifically for these events, and for the javelin, an athlete may have a longer run-up by starting it on the other side of the track, and crossing when there are no athletes passing.
Events
There are other variations besides the ones listed below, but races of unusual length (e.g. 300 m) are run much less often. The unusual races are typically held during indoor season because of the shorter 200 m indoor track. With the exception of the mile run, races based on imperial distances are rarely run on the track anymore since most tracks have been converted from a quarter mile (402.3 m) to 400 m; almost all record keeping for imperial distances has been discontinued. Women generally run the same distances as men although hurdles and steeplechase barriers are lower and the weights of the shot, discus, javelin and hammer are less.
Running Events
The following are running events conducted on a 400 m track.
Sprints: The Sprints are events up to and including the 400 meters. Common lengths include:
• 60 meters (indoors only)
• 100 meters
• 200 meters
• 300 meters
• 400 meters (quarter mile)
Middle Distance Events: events from 600 meters to the mile. Common lengths include:
• 600 meters (indoors only)
• 800 meters (half mile)
• 1000 meters (indoors only)
• 1500 meters (metric mile)
• 1600 meters
• 1 mile
Long Distance Events: events over, and including, the 3000 meters (3K). Common lengths include:
• 3000 meters
• 3200 meters
• Two miles
• 5000 meters (5K, or approximately 3.1 miles) - most often run only at the collegiate and elite level
• 10,000 meters (10K, or approximately 6.2 miles) - most often run only at the collegiate and elite level
In the United States, high school athletes in most states normally run the 800m, 1600 m, and 3200 m. In a few states high school athletes run the 1500 m and 3000 m or mile and 2 mile instead of the 1600 m and 3200m. Some people also consider the two mile distances to be middle distance events.
Hurdles: events that require the runner to jump over evenly spaced barriers during the race. Common lengths include
• 100 meter hurdles (women)
• 110 meter hurdles (men)
• 300 meter intermediate hurdles (the usual intermediate hurdle length in middle and high school competitions)
• 400 meter intermediate hurdles (the usual intermediate hurdle length in collegiate and elite competitions)
• Steeplechase (usually 3000 meters and taking the place of the two mile distance in some competitions; one barrier per lap includes a water pit)
Relays: races in which four athletes participate as a team, passing a metal baton in between. Common lengths include:
• 4 x 100 meter relay (400 meter relay)
• 4 x 200 m relay (800 meter relay)
• 4 x 400 meter relay (mile relay)
• 4 x 800 meter relay
Some events, such as medley relays, are rarely run except at large relay carnivals. Typical medley relays include:
• Sprint Medley Relay (SMR): the four legs are 400 meters, two 200 meter legs, 800 meters; or alternately 200 meters, two 100 meter legs, 400 meters
• Distance Medley Relay (DMR): the four legs are 1200 meters, 400 meters, 800 meters, 1600 meters
Most American high schools run the 4x100, 4x400 and 4x800, where college meets usually only include the 4x100 and 4x400. In both instances, the 4x400 is the last event at the meet.
Road Races: conducted on open roads, but often finishing on the track. Common lengths are:
• 5000 meters (5K)
• 10,000 meters (10K)
• Half marathon (13.1 miles)
• Marathon (26.2 miles)
• Other less common lengths include 15K, 10 miles, 20K, and 20 miles.
The marathon is the only common road-racing distance run in major international athletics championships, such as the Olympics.
Race Walking: usually conducted on open roads, but is also a typical event in high school meets. Common lengths are 10, 20 and 50 kilometers.
Field Events
Throwing Events:
• Discus (usually only at outdoor meets)
• Hammer Throw
• Javelin
• Shot Put
The "hammer" used for the hammer throw is different, whether the event is indoors (often a large ball, resembling a medicine ball, with a handle attached) or outdoors (basically a shot with a handle attached)
Jumping Events:
• High Jump
• Pole Vault (usually only at outdoor meets)
• Long Jump
• Triple Jump
The following events also take place, but are uncommon:
• Standing high jump
• Standing long jump
• Standing triple jump
Multiple Event Competitions
Multiple event competitions include events from both the track (running) and field events.
Pentathlon: the Pentathlon includes the following five events:
• High Hurdles (110 meters for men, 100 meters for women)
• Shot Put
• High Jump
• Long Jump
• 800 or 1500 meters
Heptathlon: the Heptathlon includes the following seven events:
Outdoors (usually only women):
• 100 meter high hurdles
• 200 meters
• 800 meters
• High Jump
• Long Jump
• Javelin Throw
• Shot Put
Indoors (usually only men):
• 60 meters
• 60 meter hurdles
• 1000 meters
• Long Jump
• High Jump
• Pole Vault
• Shot Put
Decathlon: the Decathlon includes the following ten events:
• 100 meters
• 110 meter high hurdles
• 1500 meters
• 400 meters
• Long Jump
• High Jump
• Pole Vault
• Shot Put
• Discus
• Javelin