Mountain race · Canada
15–16 August 2026 · Mont-Tremblant, Quebec, Canada
Odyssée 100K: Sat, 15 August 2026
A Laurentian mountain race weekend based in Mont-Tremblant, with forest climbs, ski-area gradients, technical trail, and humid late-summer conditions.
Entry · Odyssée 100K · 2026 edition
The organizer publishes the official results. Entry for the next edition is not on file yet. The organizer announces dates and entry rules; check their site before planning around a place.
From the organizer's page, checked 27 Sep 2026. TrailSplits does not know whether you have a place; the organizer is the final word.
Boréalys Mont-Tremblant by UTMB is a mountain race scheduled for 15–16 August 2026 in Mont-Tremblant, Quebec, Canada. TrailSplits currently includes 4 mapped courses for this event, with course maps, elevation profiles, weather context, and pacing tools for the uploaded GPX data.
How to get a place: Open registration with no pre-registration or lottery. For the 2026 edition it opened on 16 September 2025 for UTMB Index holders (48 hours), then to all from 18 September 2025 until sold out, no waitlist. 2027 dates not yet on the page. Organizer's page, checked Sunday 27 September 2026.
TrailSplits is a free, independent route & pacing companion — not the official race. Visit the official Boréalys Mont-Tremblant by UTMB site →
The organizer lists Odyssée 100K at 81 km and +3,600 m for 2026; the course file mapped here (the organizer's 2025 file) measures 77.5 km. Small differences come from how each figure was measured; plans and pacing here use the mapped file. Organizer's race list, checked Wednesday 30 September 2026.
Finishing Odyssée 100K earns 3 Running Stones (100K category) toward the UTMB World Series Finals lottery. How Running Stones work.
Racing more than once next year? Add Odyssée 100K to a season and see whether your races work together.
Inspect the official course track on a topographic map, through its elevation profile, or in 3D.
› running direction two lines: out and back on the same path kilometres
Selected distance
Vert-focused blueprint with route-finder links into the Planner.
Other distances
Prepare and return
Keep this course, its training plan, calendar and future course updates together in your private My Races page. Saving does not publish your workouts, pace or progress.
Race route lab
Open the official course in Planner, then choose a nearby start point to build a shorter loop that matches the course demand. This course averages about 45.1 m climb per km.
Sat, 15 August 2026
Send to your watch
Get the official course as a clean GPX or a Garmin TCX course, with step-by-step instructions to load it onto a Garmin, COROS, Suunto, Wahoo, or Komoot — free, no account needed.
Compare your training
See how faithfully your rehearsal route matches the real race. The official course for Odyssée 100K loads as Route A — upload your training route to compare distance, elevation gain, estimated time, and how much of the course you actually cover.
Course analysis
See the Odyssée 100K course broken into its major climbs and descents in order — length, gain, average grade, and steepness — so you know where the crux is and how to pace and fuel it.
Boréalys Mont-Tremblant by UTMB 2026 races run 15–16 August 2026 in Mont-Tremblant, Quebec, Canada; the Odyssée 100K is on Sat, 15 August 2026. Check the official race site for registration deadlines and final details.
4 distances (14.5–80.7 km). The longest course is 80.7 km with about 3,636 m of vertical gain — a demanding mountain course.
The Odyssée 100K course has a 18.7-hour cut-off, an average of 13.9 min/km to finish in time. TrailSplits' cut-off pacer shows the buffer at each aid station.
Yes. TrailSplits gives you the course map, an interactive elevation profile, a 3D flyover and a downloadable GPX for every mapped distance — free and with no sign-up.
Each distance has a free, course-specific 16-week training plan built around its distance, vertical gain and cut-offs, plus a pace and cut-off calculator.
No. TrailSplits is a free, independent route and pacing companion. For registration and official rules, visit https://borealys.utmb.world/.
Load the GPX directly into TrailSplits for surface analysis and terrain intel.