Margretta "Gretta" Kok (born 16 October 1944, in Amsterdam) is a retired Dutch breaststroke swimmer who participated in the 1960 and 1964 Summer Olympics. In 1960, she was fifths in the 200m breaststroke event, whereas in 1964 she did not reach the final. In 1966, she won a gold medal in the 4 × 100 m medley relay at the European Aquatics Championships.[1] Her younger sister, Ada Kok, was also an Olympic swimmer and part of the same team that won the medley gold in 1966.[2]

Gretta Kok

Gretta Kok in 1966
Medal record
Women's swimming
Representing the  Netherlands
European Championships
Gold medal – first place 1966 Utrecht 4×100 m medley

References

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  1. ^ EUROPEAN SWIMMING CHAMPIONSHIPS (WOMEN). gbrathletics.com
  2. ^ Ria van Velsen Archived 2012-11-13 at the Wayback Machine. sports-reference.com
 
Gretta Kok in 1966