Trailrace logo
Find your race Upcoming Find a Qualifier
Search Dashboard Saved Races Calendar
Trailrace logo

Helping the trail running community discover, plan for, and thrive at the world's best trail races.

Find Races

  • Search all trail races
  • Explore collections
  • Race series
  • Race qualifiers

Races by Location

  • Colorado trail races
  • California trail races
  • Utah trail races
  • Arizona trail races
  • Washington trail races
  • All US trail races

Lottery Odds

  • Western States 100
  • Hardrock 100
  • High Lonesome 100
  • UTMB
  • All calculators

Company

  • About
  • Roadmap
  • Terms of service
  • Privacy policy

Feedback

  • Send Feedback
  • Feature Requests
  • Report a Bug

© 2026 Trailrace.co. All rights reserved.

Built on bad decisions in Boulder, CO.

Chedi 20

Basic Listing
  1. UTMB
  2. 2026 Edition
UTMB World Series

17km loop around Doi Suthep and Chiang Mai's reservoir parklands

Directions
Register
All trail races in Thailand→
December 06, 2026
Sunday 7:30am GMT+7 start
Chiang Mai
Thailand
17 km
Loop Course
701 m
Elevation Gain
66°F – 83°FTemp Range
31% – 33%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 17-kilometer loop around Doi Suthep and the Mae Jok Luang Reservoir, winding through flower gardens and forest terrain from Chiang Mai PAO Park. A scenic, accessible introduction to Chiang Mai's mountain trails with 700 meters of gain and a generous 5-hour cutoff.

Difficulty

Entry-Level
2/10

Suitable for first-timers

Steep Climbing

Chedi 20

Chiang Mai, ThailandDecember 06, 2026

December 06, 2026
Course map for Chedi 20
DistDistance17 km
GainElevation Gain701 m
LimitCutoff5 h
Steep Climbing

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.
17.0 km
Distance
Loop
Route
5h
Cutoff Time
372 m
Average Elevation
701 m
Total Ascent
701 m
Total Descent
560 m
High Point
319 m
Low Point
Course map
Launch Course Explorer

Aid Stations

LocationkmElevation
Chiang Mai PAO Park
Start
0.0320 m
A17 Huay Tueng Thao Reservoir
Aid Station
8.9360 m
Chiang Mai PAO Park
Finish
16.6320 m

Sign in to see cutoffs, crew access, drop bags, and services for every aid station.

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

to write a review.

No reviews for this event yet. Be the first to share your experience!

Register•December 06, 2026