A world record is the best performance in a certain discipline, usually a sports event. In the United States the form world's record was formerly more common.

Sports records

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In a number of sports, such as athletics or swimming, world records are set in a number of events that are regularly competed in over the world. The governing body of the sport is charged with recognising the world records. In order for a record to be recognised, the event has to be held according to specific rules, and the athlete(s) in question usually have to be subject to a doping test.

The breaking of an existing world record is a major achievement in an athlete's career.

Not all events have world records, as the achievements in some events are too dependent on the layout of the course or venue, which are not bounded by rules. Other events still keep records, but they are not regarded as significantly - for instance, marathon world records are regarded as far less important than on-track athletic events. Some sports keep records for individual venues or courses; this is common in the aforementioned marathons, and also in motorsports, but these are usually referred to as course records rather than world records. Still, for particularly well-known events, a course record may be quite prestigious for the holder.

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