The Bunnig & Partners 21 km event is sold out. Unfortunately, no more starting numbers are available for the half marathon on May 10, 2026. Therefore, there’s no point in contacting the Leiden Marathon organizers, as there are simply no more tickets available. Switching from another distance to the 21 km is also unfortunately not possible.

The only option is to take over a starting number from someone who is unfortunately unable to start through our own resale platform. You can then change all the information yourself. Payment will be arranged between you. Click here for our resale platform.

And PLEASE NOTE: we no longer support bib numbers offered through other channels (Marktplaats, Facebook, etc.) in any other way. Furthermore, scammers sometimes actively offer starting numbers they do not own. Be wary of these.