I decided to run the Tour de Chaudfontaine as a long trainingsrun for further goals later on this year. Because of the 'shorter' distance, I decided to run the course unsupported. I took the GPX-file from the FKT website, but turns out that the route changed over the years. Especially between km 18 until 27, it was often looking for the trails and finding a way around it. I lost a lot of time but retracing my steps and finding another way around it. Most of the trails were heavily overgrown or just disappeared. I tried to make up some time in the following km's, especially the periods of tarmac that connected the different single tracks, but there was no way to make up for the lost time on those km's. The first 15km and last 20km were according to the GPX-file. A GPX is needed to complete the route, since the markings are not clear at all. Although I was hoping for a better finishing time, I adapted and overcame the survival-challenges and left it all on the trails and enjoyed every minute. This only fuels my motivation more to return to the route and try it again with an updated GPX, as a way to put my money were my mouth is. I'll be back.