What year was Butterfly accepted as a separate swimming style?

Which is the fastest swimming style?

Swimming statistics show freestyle remains the fastest stroke, according to world records posted on USAswimming.com, followed by butterfly, backstroke and breaststroke, the slowest competitive swimming stroke.

Is butterfly stroke faster than freestyle?

Contrary to popular belief, the peak speed reached in butterfly is actually faster than freestyle. The double arm pulling action has great propulsive potential, and when combined with the downbeat of the kick, is faster than the single-arm pull in freestyle.

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