Klaverbladloop

About the race

The Klaverbladloop is the autumn run of the Zoetermeer athletics and recreational sports club Ilion, reaching its 49th edition in 2026. Start and finish are at Ilion's athletics complex in Zoetermeer. Adults run a performance race over 5, 10 or 15 km; for children there is a schoolchildren's run over 500 metres or 1 km, which counts towards a schools competition. The organisers expect around 1,500 runners and supporters. Note: late registration on the day itself is not possible, so register online in advance; that's open until 1 November.