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World record progression 200 metres butterfly
From Wikipedia, the free encyclopedia
This is a history of the progression of the World Record for the Swimming event: the 200 Butterfly. It is a listing of the fastest-time-ever swum in the event, in both long course (50m) and short course (25m) swimming pool. These records are maintained/recognized by FINA, which oversees international competitive Aquatics.
Main article: List of world records in swimming
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The long course records are historically older than the short course records: the long course records go back to at least the 1950s, whereas the short course marks having only been recognized since the early 1990s.