First confirm your participation for the edition of 2021. Afterwards please contact us via this form so we can change your distance. 

You can change your data until the 1st of September.

Please be aware that if you choose for a longer distance that there will be extra costs. When you choose for a shorter distance the paid amount remains the same. It is not possible to get a refund for a part or the registration fee. Participants of the marathon who choose for a shorter distance will remain their right on a free race shirt.