Michael Phelps sets 100m butterfly world record | Michael Phelps | The Guardian
Syrian Refugee Swimmer Yusra Mardini Wins First Heat of 100M Butterfly but Doesn't Qualify for Semifinals at Rio Olympics - ABC News
100m Butterfly World Record
Tokyo Olympics swimming men's 100m butterfly final: Know who's competing and where to watch live in India
/cdn.vox-cdn.com/uploads/chorus_image/image/50317185/usa-today-9427901.0.jpg "Olympic swimming results 2016: Sarah Sjostrom wins gold in women's 100m butterfly - SBNation.com")
Olympic swimming results 2016: Sarah Sjostrom wins gold in women's 100m butterfly - SBNation.com
Canada's Maggie Mac Neil advances to final of women's 100-metre butterfly
100 Meter Butterfly Swimming Technique - YouTube
Michael Phelps wins 100-meter butterfly at U.S. Olympic swimming trials
Evansville's Mikaela Jenkins wins Paralympic gold medal in butterfly
Caeleb Dressel wins another Olympic gold with world record in men's 100-meter butterfly - mlive.com
Swimming-Canada's MacNeil wins women's 100m butterfly gold | Reuters
Christian US Swimmer Breaks Michael Phelps World Record in 100-Meter Butterfly - Mikaela Mathews
Caeleb Dressel wins 100 butterfly at U.S. Olympic Trials swimming
/origin-imgresizer.eurosport.com/2016/08/08/1906745-40130681-2560-1440.jpg "Olympics Rio 2016: Sarah Sjostrom breaks world record to win women's 100m butterfly - Eurosport")
Olympics Rio 2016: Sarah Sjostrom breaks world record to win women's 100m butterfly - Eurosport
Phelps breaks 100 butterfly world record -- china.org.cn
Maggie MacNeil of Canada wins the women's 100-meter butterfly. - The New York Times
Caeleb Dressel breaks 100-meter butterfly world record; Katie Ledecky cruises in 800 free - ESPN
BRPROUD | Caeleb Dressel adds 100m butterfly gold, breaks world record
Dana Vollmer breaks World Record - Women's 100m Butterfly | London 2012 Olympics Games - YouTube
Maggie Mac Neil swims to 100 metre butterfly gold, sets Canadian record
Caeleb Dressel Wins the 100-M Butterfly, Third Gold Medal and a World Record - The New York Times
Swimming-Dressel wins men's 100m butterfly gold in world record time | Reuters
Michael Phelps World Record in the 100m Butterfly Final - Rome 09 - YouTube
Caeleb Dressel Wins 100-m Butterfly and Sets New World Record | Time
