The format and rules were cemented by Andy van Bergen, inspired by the story of Mallory's effort.
[6] The widespread growth of GPS technology and social media - particularly Strava and Zwift - has been vital in allowing riders to accurately measure distance, elevation and height gain, while also sharing information about their ride.
[7] Hells 500 created the Everesting website, which established the parameters of the challenge, and started documenting attempts.
This forced riders to seek new challenges,[8] that could be completed on local roads, or on virtual platforms (sometimes called vEveresting).
Everesting is a personal challenge, and as such there is no official sanctioning body: the only criterion is that 8,848 metres (29,029 ft) of climbing is completed in a single ride or run.