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Warhorse Ultra-Trail Xiamen by UTMB Tong'an District, Fujian, China

Name: Warhorse Ultra-Trail Xiamen by UTMB
Start: 2026-03-14
End: 2026-03-15

This has already taken place.Click here to go to the 2027-03-06 event.

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Warhorse Ultra-Trail Xiamen by UTMB

Course maps

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Route source

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EXM 10K
SXM 20K
MXM 50K
LXM 100K

Foot race | 14 Mar 2026

31.6 mi

Distance

Elevation gain

2,641 ft

Elevation high

663 ft

Elevation avg

Unspecified surface

Elevation loss

36 ft

Elevation low

27%

Climb factor

What is climb factor?

The climb factor for a course is the percentage of your energy used in hill-climbing compared to the energy expended running the flats.

This course has a climb factor of 27% over 31.6 mi, which means that the energy expenditure for the run is equivalent to running a flat 40.1 mi.

Climb factor is provided courtesy of Ben Crowell, who both authored climb factor's scientific paper and wrote the open source software for it. You can read more about it here .

Course last updated 10 Oct 2026

All values approximate

Distance & elevation data

The distance or elevation data not precisely what you expect for this route?

Data from a GPS device can be rough, especially in areas where the terrain (trees, canyons) interfere with GPS signals. And routes drawn on our maps are reliant on people marking trails from satellite images -- the details of which can be hidden by trees.

Elevation can be tricky too. Elevation data is stored on spaced topographical lines, and determining the elevation of a point requires computers to estimate based on how close the point is to the topographical line.

We mitigate this by calculating distance in 3-D (think Pythagorean theorem) and using mathematical techiniques to smooth the elevation data. We come close, but no one can be perfect with imperfect data, even in 2026.

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Stats summary

Race distance	Distance	Ele gain	Ele loss	Ele avg	Paved	Gravel	Dirt	Narrow
EXM 10K	6.4 mi	1,152 ft	1,152 ft	164 ft	100%	0%	0%	0%
SXM 20K	18.1 mi	3,632 ft	3,632 ft	407 ft	100%	0%	0%	0%
MXM 50K	31.6 mi	7,510 ft	7,510 ft	663 ft	100%	0%	0%	0%
LXM 100K	59.8 mi	16,417 ft	16,417 ft	971 ft	100%	0%	0%	0%