While training for the UTMB, Hawker ran along the footpath of the Tour de Monte Rosa many times. This experience led her to create a new race, the Ultra Tour Monte Rosa, which runs for 93 miles from Grächen to Zermatt, on through villages in Italy, before returning to the start point. It incorporates more than 32,000 feet of ascent and descent over technical terrain. The inaugural Zero Edition took place in August 2015.