55 metres
Encyclopedia
55 metres is a sprint
Sprint (race)
Sprints are short running events in athletics and track and field. Races over short distances are among the oldest running competitions. The first 13 editions of the Ancient Olympic Games featured only one event—the stadion race, which was a race from one end of the stadium to the other...

 event in track and field
Track and field
Track and field is a sport comprising various competitive athletic contests based around the activities of running, jumping and throwing. The name of the sport derives from the venue for the competitions: a stadium which features an oval running track surrounding a grassy area...

. It is a championship event for indoor championships, normally dominated by the best outdoor 100 metres
100 metres
The 100 metres, or 100-metre dash, is a sprint race in track and field competitions. The shortest common outdoor running distance, it is one of the most popular and prestigious events in the sport of athletics. It has been contested at the Summer Olympics since 1896...

 runners. At outdoor venues it is a rare distance, at least for senior athletes.

The history of the event lies in the 60 yard dash, which roughly equates to 55 metres. For this reason, the event is most popular in countries which use or have used imperial measurements, especially the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. Unlike the 50 metres
50 metres
50 metres is a sprint event in track and field. It is a championship event for indoor championships, normally dominated by the best outdoor 100 metres runners. At outdoor athletics competitions it is a rare distance, at least for senior athletes...

 and 60 metres
60 metres
60 metres is a sprint event in track and field athletics. It is a championship event for indoor championships, normally dominated by the best outdoor 100 metres runners. At outdoor venues it is a rare distance, at least for senior athletes...

 running events, the 55 metres is not an IAAF recognised event.
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