#world_record_progression_400_metres_individual_medley
World record progression 400 metres individual medley
The first world record in the 400 metres individual medley in long course (50 metres) swimming was recognized by the International Swimming Federation (FINA) in 1957, followed by the women a year later. In the short course (25 metres) swimming events the world's governing body recognizes world records since March 3, 1991.
Mon 5th
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