Maria Teuntje "Ria" van Velsen (born 18 May 1939) is a retired Dutch artistic gymnast who participated in the 1960 Summer Olympics. She took part in all events, with the best achievement of 14th place in the team all-around competitions. She is not related to the Dutch swimmer Ria van Velsen who also competed at the 1960 Games.Ria van Velsen. sports-reference.com After marriage to Thijs Rietveld in 1961 she was often credited as Ria Rietveld.
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