Mass start is a format of starting in some

racing sports In sport, racing is a competition of speed, in which competitors try to complete a given task in the shortest amount of time. Typically this involves traversing some distance, but it can be any other task involving speed to reach a specific goa ...

such as

long-distance running Long-distance running, or endurance running, is a form of continuous running over distances of at least . Physiologically, it is largely aerobic in nature and requires stamina as well as mental strength. Within endurance running comes two d ...

sport of athletics Athletics is a group of sporting events that involves competitive running, jumping, throwing sports, throwing, and walking. The most common types of athletics competitions are track and field, road running, cross country running, and racewalking ...

, speed skating, long-distance

cross-country skiing Cross-country skiing is a form of skiing where skiers rely on their own locomotion to move across snow-covered terrain, rather than using ski lifts or other forms of assistance. Cross-country skiing is widely practiced as a sport and recreation ...

and biathlon. There are usually many competitors in such an event, and in order for all the competitors to have the same environmental conditions, which, among other things, include temperature, wind speed, rain or shine, etc., they need to start at the same time and same place and proceed along the same

course Course may refer to: Directions or navigation * Course (navigation), the path of travel * Course (orienteering), a series of control points visited by orienteers during a competition, marked with red/white flags in the terrain, and corresponding ...

. But the large number of competitors makes it impossible to fit all of them at the same starting line. So the

athlete An athlete (also sportsman or sportswoman) is a person who competes in one or more sports that involve physical strength, speed, or endurance. Athletes may be professionals or amateurs. Most professional athletes have particularly well-devel ...

s stand in a pack before they begin: some are behind others, sometimes by dozens of meters or more, depending on the number of competitors. The tradition is that all the athletes start at the same time, the gun time, and use the same starting line and same finishing line as those in the front of the pack. This means that those in the back of the pack have to run an extra distance. One's position in the pack at starting is determined either based on their previous records, or chosen by the participant based on their own expectation and

etiquette Etiquette () is the set of norms of personal behaviour in polite society, usually occurring in the form of an ethical code of the expected and accepted social behaviours that accord with the conventions and norms observed and practised by a ...

. Usually, the best athletes take the front positions. Modern electronic technology has made it possible to get the time lapsed for each individual athlete from their crossing the starting line to their crossing the finishing line, the chip time. This is also called transponder timing. However, this has the disadvantage that the race finish is not simultaneous, so the race results do not match the finish line order. Other ways to avoid disadvantage towards those in the back of the pack are individual starts (where athletes start one at a time) and interval starts (where athletes are released in small batches). Chip time is normally not used to determine top positions. The first to reach the finish shall be the winner.

References

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External links

New York Times: "You Clocked What? For Marathon Runners It's Gun vs. Chip."
Endurance games Sport of athletics terminology Skiing competitions