Toughest Race In The World
The title Toughest Race In The World has several claimants. Nobody has completed all the races on the list below and some of the races are no longer held. Each race generally has one dominating factor whether it is the temperature, the terrain or time limits which qualifies it for T.R.I.T.W.
- Marathon des Sables
- Yukon Arctic Ultra
- Sri Chinmoy 1300 Mile Race
- Self-Transcendence 3100 Mile Race