The more intense and total distance of 50 km to cover, Ultra 50 K Challenge was the first event for the second day of HOF and had 16 total participants. It has all the challenges involved in trail running.The race started at Nagarjun following the trail of Thankot, Chitlang, Champadevi and finally Hattiban Resort.

1st : Upendra Sunwar
2nd: Ram Sundar Karki
3rd: Hom Lal Shrestha