On This Day In History - Den Ouden, Queen Of 100 Free Pace For 23 Years
Timeline - The SOS Daily Trawl of official World long-course records (plus all pre 1954 standards, all pools and metrics) set this day throughout history.
February 24
On this day in history ...
1934: Willy Den Ouden, of the Netherlands, set the second of her four World records over 100m freestyle in Amsterdam. At the time, global standards could be set in pools of various lengths, including what are now known as short-course (25m) and long-course (50m) pools. Den Ouden set all her standards in short-course pools and held the 100 record in her grip between July 1933 and he dawn of Dawn Fraser as global-pace pioneer 70 years ago this month on February 21, 1956.
1959: Sylvia Ruuska, of the United States, clocked the third of her four World records in the 400m medley. She swam during the first decade of four-stroke medley swimming after the birth of butterfly. There were no medley events at the Olympic Games until 1964, beyond Ruuska's time in the fast lane. The first of her global 400m standards was also the first under new world-record rules that only recognised marks established in long-course, 50m, pools.


February 23
On this day in history ...
1959: John Konrads set the last of his four World records over 400 freestyle, all of them over 440 yards, and three of the four established in Sydney, the other in Melbourne
1960: Dawn Fraser set the 8th of her (and what remains the) record 11 World records in the 100 free: six of those were swum in long-course yards pools, the others in long-course metres pools.


