Kaatsen at the 1928 Summer Olympics

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Kaatsen or Frisian handball ({{langx|fy|keatsen}}; {{langx|nl|kaatsen}}) was featured in the 1928 Summer Olympics unofficial programme.{{cite book |author= Bill Mallon, Jeroen Heijmans |title= Historical Dictionary of the Olympic Movement |url=https://books.google.com/books?id=9mM0XzW03AcC&q=Historical+Dictionary+of+the+Olympic+Movement|year=2011|page=185|publisher= Scarecrow Press |isbn= 9780810875227 }}{{cite web|title= DEMONSTRATION & UNOFFICIAL SPORTS |url=http://www.gbrathletics.com/olympic/other.htm#DEMO}}

File:Kaatsen at the 1928 Summer Olympics.jpg

Kaatsen is a traditional Frisian sport, related to American handball and fives, that is most commonly practiced by people from the northern Dutch province of Friesland (Fryslân). It is believed to be one of the oldest ballgames. The score is similar to tennis. The first team scoring six games wins the match.