Last weekend I attended my first trail race under heavy rain. The rain was not planned or desired, but anyway we have no power over nature. The planned route was 13 km with ~1800m elevation, but actual one due to bad weather was 10 km (~1075m elev). The last 3 km had to be the most difficult and interesting, but I will have the opportunity to run them next year.
2.7k60p Video from a GoPro Hero 4 Black with a head strap:
The race was not only for running, some bikers vinished different, longer route. Video from a fella: