One Hundred World Championship Partners with Gretel Planner
The One Hundred World Championship is pleased to announce a collaboration with race planning platform Gretel Planner, bringing advanced race-strategy technology to selected championship races and strengthening the series' commitment to athlete preparation and innovation in trail running.
Gretel Planner helps runners visualise a race before they run it. Using GPX course data and technical race information, the platform allows athletes to analyse elevation profiles, fine-tune their pacing, schedule their nutrition, and map their expected timing through checkpoints and key sections of the course.
A runner can arrive at the start line having already studied the course in detail, understanding its terrain, conditions, and demands well enough to have adapted their training, selected the right gear for the trip, and mentally mapped the challenge ahead. A race on the other side of the world can be prepared for as thoroughly as one in their own backyard.
For 2026, Gretel Planner will be integrated into several events across the championship, among them Costa Rica 200, Ladakh Trail to Heaven, Cro-Trail, and the Mons Ultra Trail Grand Final. Athletes registered for participating events will have free access to the platform as part of their race entry.
Race data for each participating event will be integrated directly into the Gretel platform, allowing registered runners to build and refine their race strategy in the weeks leading up to their event. For event organisers, the integration offers a structured way to communicate to participants all technical aspects of their race, helping them deliver a more optimised experience from registration through to race day.
By building a clear picture of what lies ahead, including organiser guidance and any course warnings – athletes can better anticipate challenging moments on the trail, make smarter decisions, and reduce the risk of costly mistakes on race day, improving overall safety.
For One Hundred, the partnership represents a further step in strengthening the athlete experience across the championship's growing ecosystem, combining the demands of world-class trail running with tools that support smarter, better-prepared racing.
