Ultra-Trail Mogan by UTMB®
Ultra-Trail Mogan by UTMB (100K)
Moganshan (Yucun Square, Moganshan International Tourism Resort, Deqing County, Huzhou City)
Race guide
Updated 2 July 2026
Ultra-Trail Mogan by UTMB starts and finishes at Moganshan, running from Yucun Square out through the Moganshan International Tourism Resort in Deqing County, Huzhou City. Despite the '100K' name in the race branding, the actual course measured is 81 km, but don't let that shorter number fool you: it packs 4564 m of climbing into that distance with a high point of just 667 m. That ratio — huge vertical gain crammed into a low-altitude course — tells you exactly what kind of day this is: relentless, punchy, repetitive climbing and descending through bamboo forest terrain rather than one or two big alpine efforts. The race finishes back at the Moganshan International Tourism Resort, with a Day 2, 19:00 cut-off for the full 81 km.
The course: low altitude, constant vertical
With a high point of only 667 m, this isn't a race defined by thin air or exposed ridgelines — it's defined by volume. 4564 m of D+ over 81 km works out to roughly 56 m of climbing per kilometre, which in practice means the course rarely settles into a flat rhythm. You're either climbing or descending almost the entire way, through terrain that stays low but never lets up. The route threads through named waypoints — Luoxin Valley, Hebu Ling, Yinzishan Village, Fatou Village, Xiangshuiling Resort Hotel and Biwu — before returning to Moganshan, giving the course a series of distinct forest and village sections rather than one long uniform grind. Because the elevation stays modest throughout, this is a course where footing and trail surface matter more than altitude adaptation. The constant short, sharp ups and downs will hammer quads and calves differently than a single sustained mountain climb would — expect the cumulative fatigue to build steadily rather than hit in one dramatic wall.
Where the race is actually decided
On a course built from repeated short climbs rather than one or two defining ascents, the danger isn't a single named crux — it's the accumulation. Runners who've raced similar UTMB-format courses consistently report that the opening sections feel deceptively easy and 'free,' and that feeling is exactly the trap. Treat the ground between Yucun Square and the mid-race waypoints (Luoxin Valley, Hebu Ling, Yinzishan Village) as a deposit-building phase, not a place to bank time. The real race takes shape in the second half, through Fatou Village, Xiangshuiling Resort Hotel and Biwu, where legs that were spent early will unravel on the same style of short, punchy climbs that felt manageable a few hours before. The winning approach that's been proven on courses like this: go through the first half almost socially patient, even if it feels 'too easy,' because that reserve is what funds a strong close over the back third into the finish at Moganshan. Runners who push hard early on repetitive terrain like this tend to fade hardest exactly when the cumulative 4564 m starts to bite.
Pacing and fuelling the climb count
Given the elevation profile — huge total gain, low high point, no single monster ascent — this is a race to run on effort, not pace. Resist matching kilometre splits to flat-course expectations; instead, run the climbs by heart rate or perceived effort and let the many short descents be where you actually make time. Because the terrain never really flattens out for long stretches, plan your fuelling around time rather than distance markers, and treat each named waypoint — Luoxin Valley, Hebu Ling, Yinzishan Village, Fatou Village, Xiangshuiling Resort Hotel, Biwu — as a mental checkpoint to reset intake and effort, breaking the 81 km into manageable, planned segments rather than one long unbroken push. The cut-off at the finish is Day 2, 19:00, which gives a two-day window overall — useful to know when deciding how conservative to run the first half. A patient opening third, banked deliberately rather than out of fear, is what turns the accumulated 4564 m of climbing into a strong finish rather than a survival shuffle through the closing sections.
Conditions to expect
The course sits low (max 667 m) around Moganshan's forested hills in Huzhou City, so expect the climate to play a bigger role than altitude. Low-elevation forest terrain in this region typically means warmer, more humid air in the valleys and along the bamboo-lined sections than you'd get on a high-mountain course, and that heat load compounds the fatigue from the constant climbing. Runners who've handled this style of race well talk about breaking the heat into planned, managed resets — treating tough patches as 'two more sections and I'm home' rather than something to fear — rather than trying to fight through discomfort in one continuous effort. Plan your hydration and cooling strategy around that pattern, especially through the mid-to-late waypoints where both terrain and temperature fatigue stack up together.
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Checkpoints & cut-offs
✓ Course data verified against the official source (2026-07-05) · official source
0 km · 74 m · Fri 21:15
10.1 km · 79 m · —
24.5 km · 122 m · Sat 04:00
34.1 km · 102 m · —
46.4 km · 60 m · Sat 10:00
55.5 km · 263 m · —
69.9 km · 200 m · Sat 16:30
81.5 km · 49 m · Sat 19:00
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