Madrid to Barcelona is an ultracycling event, the route is mostly tarmac but there are gravel section. The fourth edition will take place on May 31, 2024. Participants will have to complete the 700Km and +7000m following the GPS track that we have created for the event that will connect Madrid with Barcelona. The event will be unsuported. Adventure, self-sufficiency, nature and cycling will be the factors that will accompany you during the 50 hours available to complete the entire route.