Haley Batten and Sofia Gomez Villafane lead the women's race after the prologue and Stage 1 while Andreas Seewald and Martin Stošek have the lead in the men's category.
Kate Courtney, Jenny Rissveds, Nino Schurter, Lars Forster, Florian Vogel and Thomas Frischknecht, to name just a few, have all contributed victories over the past two decades.
Check out all the behind the scenes action on social media as riders get to see the course they hope their Olympic dreams will play out on for the very first time.
With more than 400 riders from 40 nations across 5 continents, there's a huge field of XC riders lining up for a shot at the Rainbow Jersey in Mont Sainte Anne.
SRAM's eTap wireless electric shifting system has been flourishing on the road, but the Chicago drivetrain maker has been reluctant to release it to mountain bikers. Could 2018 become the battle of the batteries?
2016 hasn't been a bad year for Nino Schurter. At all. There was the whole gold medal in Rio, the World Champion's jersey before that and a string of podium visits. Here's the bike Nino has been crushing it on.