The TREK : The vast majority hike the challenge. It is an "open to all" hike. It is not a competition and people are free to go as fast and and slow as they like (within reason as cut offs will apply!)The first hikers usually arrive in 12 hours with the last around 17 hours. The ULTRA :The Art O Neill is also an ultra running race for those brave/mad/fit enough and able to navigate.The record is 5hr 20min recorded by Eoin Keith in 2014 The HYBRID : Run the first 30km road section to Checkpoint 1, and walk the mountain section(guided or independent) for the remainder of the challenge.