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Suthep 20 (Day)

Draft Listing
  1. UTMB
  2. 2026 Edition
UTMB World Series2 Stones

21km daytime run through the forest trails of Doi Suthep-Pui

Directions
Calculate UTMB Lottery Odds2 Running Stones
Register
All trail races in Thailand→
December 06, 2026
Sunday 6:30am GMT+7 start
Chiang Mai
Thailand
20.47 km
Loop Course
1,159 m
Elevation Gain
Historical weather
66°F / 83°FLo/Hi Temp
70°F / 89°FFeels Like
31%Cloud Cover
0% (0.08 in)Precipitation
5 mphWind Speed
77%Humidity
6:42 AMSunrise
5:46 PMSunset
Open Registration
No lottery
No Service Requirement
Does not require trail or volunteer work
No Qualifier
No qualifier race required
Beginner Friendly
Suitable for first-timers
Links
WebsiteInstagramFacebookYouTube
2020
Established

What Makes It Great

A 21-kilometer daytime loop through Suthep-Pui National Park from Chiang Mai PAO Park, climbing through lush jungle to the Hmong village of Khun Chang Kian with scenic mountain views. A well-paced introduction to northern Thailand's trail running terrain, with 1,200 meters of elevation gain.

Difficulty

Entry-Level
3/10

Suitable for first-timers

Steep Climbing
Sun Exposure

Suthep 20 (Day)

Chiang Mai, ThailandDecember 06, 2026

December 06, 2026
Course map for Suthep 20 (Day)
DistDistance20.47 km
GainElevation Gain1,159 m
LimitCutoff7 h
Steep ClimbingSun Exposure

Entry Timeline

Race DayDecember 06, 2026

Lottery

This event uses open registration - no lottery entry required.

Qualifier

This event does not require a qualifier for entry.

Service Requirement

This race does not have a service requirement for entry.
20.5 km
Distance
Loop
Route
7h
Cutoff Time
681 m
Average Elevation
1,159 m
Total Ascent
1,160 m
Total Descent
1,358 m
High Point
319 m
Low Point
Course map
Launch Course Explorer

Aid Stations & Cutoffs

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No on-site camping available

Crew Access Points

Pacer Rules

No Pacers Allowed

Crew Rules

No Crew Allowed
Daylight
11h 4m
6:42 AM5:46 PM
83°F / 66°F
Feels like 89°F / 70°F
Temperature Hi/Lo
0% (0.08 in)
Precipitation
5 mph
Wind
77%
Humidity
31%
Cloud Cover
Based on historical averages for December 06

Gear Rules

Required Gear

No required gear specified

Recommended Gear

No recommended gear specified

Videos & Race Reports

No videos or race reports available for this event yet.

Reviews

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Register•December 06, 2026