Maria "Rie" Vierdag (22 September 1905 – 17 July 2005) was a Dutch freestyle swimmer who competed at the 1924, 1928 and 1932 Summer Olympics. She won a silver medal in the 4×100 m relay in 1932, setting a European record, and finished sixth in 1924. She failed to reach the 100 m finals at all Games.
Dutch 4×100 m team at the 1931 European Championships. Vierdag is right.
|Born||22 September 1905|
Amersfoort, the Netherlands
|Died||17 July 2005 (aged 99)|
Amsterdam, the Netherlands
|Height||1.70 m (5 ft 7 in)|
Vierdag was a European champion in the 100 m in 1927 and in the 4×100 m relay in 1931. In 1927 she finished her 100 m race in the same time as Joyce Cooper, and an addition trial was arranged between them. Cooper was too tired to attend it, and Vierdag was announced as the winner.
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