Every year in the first weekend of April the NN Marathon Rotterdam takes place. The world’s top athletes as well as thousands of runners from home and abroad get to experience what it’s like to finish on the renowned Coolsingel; it’s a marathon weekend that combines top sporting action with a festival feel. No other marathon in The Netherlands can match the Rotterdam atmosphere, with hundreds of thousands enthusiastic spectators along the course.

https://www.nnmarathonrotterdam.org/