In this Dutch name, the surname is den Hamer, not Hamer.

Rudolf den Hamer (July 24, 1917 – March 14, 1988) was a Dutch water polo player who competed in the 1936 Summer Olympics. He was part of the Dutch team which finished fifth in the 1936 tournament. He played four matches.[1]

References

  1. ^ Evans, Hilary; Gjerde, Arild; Heijmans, Jeroen; Mallon, Bill; et al. "Ru den Hamer Olympic Results". Olympics at Sports-Reference.com. Sports Reference LLC. Archived from the original on 18 April 2020. Retrieved 21 November 2019.