General info

Ragnar has a big, enthusiastic swimming section. We offer three practices a week and join five big swimming tournaments a year! The practices are made so swimmers of every level can join, as long as you have some basic swimming skills. There are five lanes, each with a different level. In the first one, swimmers learn the basics of every stroke, and in the fastest lane you will find swimmers who have swum their whole lives.


During the season, Ragnar competes in five student swimming competitions (called NSZKs and ONKS). The NSZK competitions are held amongst the 12 universities’ teams in different cities in the Netherlands. The ONKS consist of a regular competition accessible to all students in the Netherlands. Every competition starts on Friday with a social drink. On Saturday, we compete in the water. After that, we all have dinner together. We finish the weekend with a big party. Depending on the distance where the competition takes place, we either sleep in Rotterdam or in the hosting city.

All competitions of the season 2020-2021:

  • NSZK 1 – Maastricht – October 10 2020 – CANCELED
  • NSZK 2 – Tilburg – December 5 2020
  • ONKS – Nijmegen – February 27 2021
  • NSZK 3 – Rotterdam – May 1 2021
  • NSZK 4 – Enschede – June 12 2021

Click here for more information about the practices or results of the competitions. You will find the rules here.

If you have any questions or remarks you can contact our swimming commissioner via