Ultra-Trail Mount Yun by UTMB
Ultra-Trail Mount Yun by UTMB
Xiangning (Zhonghe Square, Mount Yun)
Race guide
Updated 19 July 2026
Ultra-Trail Mount Yun by UTMB is a 97 km mountain ultra based in Xiangning, starting and finishing at Zhonghe Square in the shadow of Mount Yun. With 7,570 m of cumulative elevation gain and a high point of 1,655 m, the course packs a serious amount of vertical into a relatively compact distance — averaging roughly 78 m of climbing per kilometre, a density that keeps your legs and lungs honest from first light to finish line. The race sits firmly within the UTMB World Series family, bringing international race standards and timing to a course that is deeply rooted in the landscape around Mount Yun. Runners begin and end at Zhonghe Square (653 m / 661 m), with a generous cut-off of Day 01:00 +1, meaning the course must be completed within a set window that rewards consistent movement over heroics.
Course & Terrain
The route loops out from Zhonghe Square and returns to the same central point, covering 97 km of varied mountain terrain around Mount Yun. The high point sits at 1,655 m — modest in absolute altitude but reached repeatedly through relentless climbing that accumulates to 7,570 m D+. Expect the terrain to shift character across the course: runnable valley sections and tracks give way to steeper, technical ascents and descents as the route pushes into the higher ridges of the Mount Yun massif. The return to Zhonghe Square at 661 m confirms the race is essentially a loop, with the bulk of the elevation work distributed across the middle sections of the course. Underfoot conditions will vary — smooth compacted trail on approach sections, looser or rockier ground on the upper ridges — so footwear with reliable grip and some cushioning for the long flat stretches is a sound choice.
Decisive Climbs & Where the Race Is Won or Lost
With 7,570 m of gain spread over 97 km, there is no single brutal climb that defines this race — instead, it is the accumulation of repeated ascents that breaks runners who go out too hard. The upper sections of the course, approaching and retreating from the 1,655 m high point, are where positioning matters most. Runners who arrive at the mid-point of the race with legs still intact have the ability to push on the descents and sustained runnable ridgelines in the second half. Those who burned matches early on the initial climbs out of the valleys will find those same descents become a damage-limitation exercise. The race is not won on the first climb — it is won in the final quarter, by the runner who conserved enough to actually race home.
Pacing & Race Strategy
The single most important strategic call in this race is how you manage the first half. The early sections, with their more moderate gradients and fresher legs, are a trap — they invite you to run faster than the race demands. Resist it. A patient, almost social first half is not a weakness; it is the investment that pays out in the final 30–40 km when the course's cumulative toll is fully felt. Think of the early hours as banking credit, not losing time. The record-breaking approach to this kind of event is to go easy early, then trust your legs to close. In practice, run by effort rather than pace: keep your breathing controlled on climbs, take the runnable sections smoothly rather than frantically, and arrive at each checkpoint feeling like you have more left than you're showing.
Fueling & Nutrition
97 km with 7,570 m of climbing demands a structured fueling plan, not improvisation. Given the single checkpoint structure visible in the data — start and finish at Zhonghe Square — runners should expect to carry sufficient nutrition and hydration for extended unsupported stretches between any intermediate aid points on course. Plan for a minimum of 250–300 kcal per hour and prioritise consistent intake from the first hour, well before hunger or fatigue signals arrive. Liquid fueling becomes especially important if conditions are warm: the Mount Yun area can deliver significant heat during the day, and managing core temperature through hydration is as important as caloric intake. Break the race into mental blocks — 'two more climbs and I'm at the next reset' — to keep nutrition timing anchored to landmarks rather than allowing long gaps to creep in during tough sections.
Conditions to Expect
Runners should prepare for variable mountain conditions across a race that will span at least one full night given the cut-off structure (Day 01:00 +1). That means a mandatory kit approach: headtorch with spare batteries, insulating layer for the overnight hours on exposed ridges, and waterproof protection against rapidly changing mountain weather. Daytime sections, particularly through valley terrain, can be warm to hot — sun exposure on open trails demands sun protection and proactive hydration. The transition from daytime heat into cooler night temperatures is a common point where runners under-dress and lose core warmth; have a layer accessible rather than buried in your pack. Wind exposure increases on the higher sections near the 1,655 m high point. Check local forecasts for the Xiangning area in the days before the race and build your kit list around the worst credible scenario, not the best.
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Checkpoints & cut-offs
✓ Course data verified against the official source (2026-07-05) · official source
0 km · 653 m · —
10.1 km · 1365 m · —
18.6 km · 1579 m · Sat 02:30
32.2 km · 1070 m · —
40.3 km · 1019 m · Sat 09:30
50.3 km · 988 m · —
61.9 km · 1041 m · Sat 15:30
71.1 km · 1317 m · —
82.6 km · 984 m · Sat 21:00
92.6 km · 722 m · —
96.8 km · 661 m · Sun 01:00
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