From: SwimSwam.com
On night 3 of the 2016 U.S. Winter Nationals, U.S. Olympian Tom Shields made history with the first ever sub-44 time in the 100 yard butterfly. Shields crushed the field, winning the race in a new American and U.S. Open Record time of 43.84. With that swim, Shields is now the fastest 100 yard butterflier of all time, surpassing Singapore’s Olympic champion Joseph Schooling.