Trail ultramarathon · China
16–18 October 2026 · Mount Yun, China
A Chinese mountain ultra around Mount Yun, with steep forest climbs, temple-country ridges, and long technical descents across mixed trail and road.
Entry · UMY 100M · 2026 edition
The organizer showed registration for UMY 100M as closed on 1 Oct 2026.
From the organizer's page, checked 1 Oct 2026. TrailSplits does not know whether you have a place; the organizer is the final word.
Ultra-Trail Mount Yun by UTMB is a trail ultramarathon scheduled for 16–18 October 2026 in Mount Yun, China. TrailSplits currently includes 5 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: Registration for the 16–18 October 2026 edition is closed on every course. Nothing about 2027 is published yet. Organizer's page, checked Thursday 1 October 2026.
TrailSplits is a free, independent route & pacing companion — not the official race. Visit the official Ultra-Trail Mount Yun by UTMB site →
The organizer lists UMY 100M at 166 km and +7,400 m for 2026; the course file mapped here measures 164.3 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 UMY 100M earns 4 Running Stones (100M category) toward the UTMB World Series Finals lottery. How Running Stones work.
Racing more than once next year? Add UMY 100M 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 44.6 m climb per km.
16–18 October 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 UMY 100M 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 UMY 100M 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.
Race-week reminders
A free browser notification in the final week — the course crux, the weather window, and loading the GPX onto your watch. No app, no email, no account.
Ultra-Trail Mount Yun by UTMB 2026 is scheduled for 16–18 October 2026 in Mount Yun, China. Check the official race site for registration deadlines and final details.
5 distances (22–166 km). The longest course is 166 km with about 7,400 m of vertical gain — a demanding mountain course.
The UMY 100M course has a 48-hour cut-off, an average of 17.3 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://mount-yun.utmb.world/.
Load the GPX directly into TrailSplits for surface analysis and terrain intel.