• 

  Michael Phelps World Record in the 100m Butterfly Final - Rome 09 - YouTube

  https://www.youtube.com/watch?v=DDjj6xd3tbs

  Michael Phelps World Record in the 100m Butterfly Final - Rome 09

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  Michael Phelps 200m butterfly World Record - YouTube

  https://www.youtube.com/watch?v=IEMHTeoKMVU&spfreload=10

  Michael Phelps 200m butterfly World Record

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