Published world butterfly records progression. To view you need to select pool, gender, stroke style - butterfly and a desired distance, for example World records in swimming. Men, SCM (25m), Butterfly, 50 m. Under the current record information, you can observe its progression.
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Published WR Individual Medley progression
Published world Individual Medley records progression short and long course, women and men. This information includes: record's value, date, swimmer and place.
Published WR Breaststroke progression
Published world Breaststroke records progression short and long course, women and men. This information includes: record's value, date, swimmer and place.
Published WR Backstroke progression
Published world backstroke records progression short and long course, women and men. This information includes: record's value, date, swimmer and place.