Charity
The Dutch Cancer Society (KWF Kankerbestrijding)
For over 40 years, the NN Marathon Rotterdam has been the most beautiful of the Netherlands. Tens of thousands of runners come from all over the world to experience the unique atmosphere in Rotterdam. Cheered on by thousands of enthusiastic supporters along the route and finishing on the Coolsingel.
Also this year, the NN Marathon Rotterdam supports the Dutch Cancer Society. The organization calls on every participant to contribute to a better life for people dealing with cancer. Run against cancer and for life during the NN Marathon Rotterdam!
Prefer walking? Then walk against cancer during The Marathon Rotterdam Walk. Click here for more information.


Free bib number
Register via KWF, raise at least €750 by January 12, 2026, and receive a free ticket and a Run against Cancer shirt. With your campaign page, fundraising is easier than you think.
For the full marathon, 1400 bib numbers are available. full=full
TAKE ACTION!
Would you rather arrange your own bib number but still want to make an impact? Then just create a campaign page. Will you raise 500 euro or more? Then you will receive the Run against Cancer shirt.
Run and raise money with your colleagues
Run against cancer with your colleagues during the NN Marathon Rotterdam and raise money for groundbreaking cancer research. Create a team page, invite colleagues and raise money together through your network. There are two ways to participate!
Please note: we only have regular tickets available, no Business Packages.
Research
1 in 2 Dutch people will develop cancer at some point in their lives. But did you know that a third of this is preventable? More than 30% of all cancer cases are caused by lifestyle and environmental factors, such as smoking, unhealthy eating and lack of exercise. That is why Golazo, organizer of the NN Marathon Rotterdam and promoter of a healthy lifestyle, links its sporting events to KWF to make an impact together.