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}} Johanna Maria Elisabeth "Jopie" Waalberg (13 April 1920 – 5 July 1979) was a Dutch breaststroke swimmer who competed in the 1936 Summer Olympics and was the first woman to swim the 200 meter breaststroke under 3 minutes. In 1936 she finished fifth in the 200 metre breaststroke event, the single breaststroke event until the 1968 Olympics. At the 1938 European Aquatics Championships in London she won a bronze medal on the same distance. On May 11, 1937 she broke Hideko Maehata's four-year-old breaststroke record by 0.2 seconds (3:00.2). On Jun 27 of that year, in Zaandijk, she improved on that record by more than 2 seconds to 2:58.0. She improved her own world record once more on October 2 to 2:56.9. She further held world records in the unconventional distances of 200 yard, 400 m and 500 m breaststroke. ==External links== *(profile ) *(profile ) (in Dutch) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Jopie Waalberg」の詳細全文を読む スポンサード リンク
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