Ryan Sandes and Ryno Griesel have the fastest known time in ultramarathon history .
Nepal hosts several ultramarathon races , including the Annapurna 100 , the Kanchenjunga Ultra Marathon Trail Running Race and the Everest Ultra.. Running a total of 1,504 km in a bit more than 24 days , Ryan Sandes and Ryno Griesel set a new fastest known time during March 2018 for the Great Himalaya Trail . *
Ultramarathon