Athletes also deal with extreme weather conditions due to the remote locations and altitude changes.
These small numbers allow races to be held in remote and inaccessible locations, one of many characteristics of extreme triathlon.
Some races are "unsupported" so competitors need to have personal back up crews that support to provide them with food, drinks and other necessities.
During these sections, competitors are often required to carry a backpack containing emergency food and clothing should the weather change.
In this backdrop, several races created virtual challenges where athletes completed 'events' wherever they could, or on Zwift (or similar) if unable to get outside.
Starting in 2025, the XTRI Solo Point Five World Championship will be held annually at a different SP5 race location each year.