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Two pagodas on a forested ridge of Doi Inthanon in golden light, with hazy ranges behind
Bharath Mohan / Unsplash

Chiang Mai Thailand by UTMB course maps and aid stations

Two weekends of racing in northern Thailand: loops on Doi Inthanon first, then the long point to point courses into Chiang Mai.

November 27 to December 6, 2026 Chiang Mai, Thailand

Chiang Mai Thailand by UTMB is the UTMB World Series Major for Asia-Pacific in 2026. It runs over two weekends from two bases. The first is the Doi Inthanon National Park headquarters, on the road up Thailand's highest mountain, for the Pagoda 50 and Inthanon 20 on November 28 and 29. The second is PAO Park, a lakeside park behind Chiang Mai's City Hall, where everything else finishes from December 4 to 6.

The Chiang Dao 160 starts at the foot of Doi Luang Chiang Dao, far to the north, and the Elephant 100 starts in Mae Taeng. Both come south through the hills to Doi Suthep-Pui National Park and down into the city. The Hmong 50 and Suthep 20 are loops from PAO Park into the same national park, and the Chedi 20 takes in the Mae Jok Luang reservoir and the flower gardens around Doi Suthep.

You have to carry a phone that stays switched on, with international roaming and the LiveTrail tracking app, and the rules allow that some stretches may only get emergency calls through. Download the course map before you go. GPS shows where you are on it without any signal.

This is an unofficial guide: Goat Maps isn't affiliated with Chiang Mai Thailand by UTMB. Check the official site before you enter or race.

Chiang Mai course map

Every course's aid stations on the Goat Maps topo map. Each course has a map of its own further down.

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Chiang Mai courses

CourseDistanceClimbingStartTime limit
Chiang Dao 160173.3 km (107.7 mi)9,800 m (32,152 ft)Fri, Dec 4, 10:00 AM48 h
Elephant 100100.9 km (62.7 mi)5,500 m (18,045 ft)Fri, Dec 4, 8:00 AM28 h
Hmong 50 (Day)63 km (39.1 mi)3,000 m (9,843 ft)Sat, Dec 5, 6:00 AM16 h 30 min
Hmong 50 (Night)63 km (39.1 mi)3,000 m (9,843 ft)Sat, Dec 5, 6:00 PM16 h 30 min
Pagoda 50 (Day)56.7 km (35.2 mi)3,600 m (11,811 ft)Sat, Nov 28, 7:00 AM16 h 30 min
Pagoda 50 (Night)56.7 km (35.2 mi)3,600 m (11,811 ft)Sat, Nov 28, 6:00 PM16 h 30 min
Inthanon 2020.5 km (12.7 mi)800 m (2,625 ft)Sun, Nov 29, 7:00 AM7 h
Suthep 20 (Day)25.6 km (15.9 mi)1,100 m (3,609 ft)Sun, Dec 6, 6:30 AM7 h
Suthep 20 (Night)25.6 km (15.9 mi)1,100 m (3,609 ft)Sat, Dec 5, 4:00 PM7 h
Chedi 2016.6 km (10.3 mi)700 m (2,297 ft)Sun, Dec 6, 7:30 AM5 h

Chiang Mai Chiang Dao 160

From the cave temple below Doi Luang Chiang Dao south through the hills to PAO Park in Chiang Mai.

Distance
173.3 km (107.7 mi)
Climbing
9,800 m (32,152 ft)
Start
Fri, Dec 4, 10:00 AM
Time limit
48 h

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You start on Friday at 10:00 at Wat Tham Chiang Dao, the cave temple at the foot of Doi Luang Chiang Dao, and have 48 hours to reach PAO Park. The organizer's route climbs to San Pa Kia and Doi Pha Sam Liam for views over the mountains, then passes the Hmong village at Ban Doi Pui and Montha Than waterfall on the way down into the city. The first big climb is to the Pagia Highland Research Station, at 1,566 m and 32.8 km. 2025 was the first year the race started from Chiang Dao.

Crews can meet you at Ban Mae Mae School, Sop Kai, Mae Taeng, Si Roi, Wat Pang Hai and Maesa Elephant Camp, and your drop bags wait at Sop Kai and Wat Pang Hai. The longest gap is Monjam to Maesa Elephant Camp, 14.2 km with a descent from 1,276 m to 528 m.

A steep limestone mountain over rice fields and pines in Chiang Mai province
SauYing / Unsplash

Chiang Mai Elephant 100

Point to point from Mae Taeng to Chiang Mai, joining the 160 route at Si Roi.

Distance
100.9 km (62.7 mi)
Climbing
5,500 m (18,045 ft)
Start
Fri, Dec 4, 8:00 AM
Time limit
28 h

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The Elephant 100 starts on Friday at 08:00 at Wat Nong Bua Noi in Mae Taeng, with a 28 hour limit. The first 20 km take you from 364 m up to Wat Phra Phutthabat Si Roi at 1,056 m, where you join the Chiang Dao 160 route for the rest of the way. After that you pass Doi Mon Jam, known for its views, then Maesa Elephant Camp and the Hmong village at Ban Doi Pui before the drop to PAO Park.

Crews can meet you at Si Roi, Wat Pang Hai and Maesa Elephant Camp, where your drop bag also waits.

A hill village in the forest below layers of hazy ridges near Chiang Mai
Thong Vo / Unsplash

Chiang Mai Hmong 50 (Day)

A loop from PAO Park through Doi Suthep-Pui National Park, starting before dawn.

Distance
63 km (39.1 mi)
Climbing
3,000 m (9,843 ft)
Start
Sat, Dec 5, 6:00 AM
Time limit
16 h 30 min

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The Hmong 50 leaves PAO Park on Saturday at 06:00 and has 16 hours 30 minutes to get back. It heads out past the King Kong Landmark to Maesa Elephant Camp, then climbs to Wat Doi Pui by the Hmong village, at 1,400 m. From there it's 13.3 km down to Montha Than waterfall, the longest gap on the course, and 10.9 km more to the finish.

The organizer lists no crew points on the course, so carry what you need between stations.

Temple roofs above houses on the forested slopes of Doi Suthep, seen from the air
Mike Holp / Unsplash

Chiang Mai Hmong 50 (Night)

The same loop, starting at 18:00 and running through the night.

Distance
63 km (39.1 mi)
Climbing
3,000 m (9,843 ft)
Start
Sat, Dec 5, 6:00 PM
Time limit
16 h 30 min

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The night race uses the day course and its aid stations but leaves PAO Park on Saturday at 18:00. Most of it runs in the dark, and the finish cutoff is 10:30 on Sunday morning. It costs ฿4,300 against ฿6,800 for the day race.

Chiang Mai Pagoda 50 (Day)

A loop from the Doi Inthanon headquarters past the Twin Royal Pagodas, and the Major 50K.

Distance
56.7 km (35.2 mi)
Climbing
3,600 m (11,811 ft)
Start
Sat, Nov 28, 7:00 AM
Time limit
16 h 30 min

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Pagoda 50 starts and finishes at the Doi Inthanon National Park headquarters, 1,247 m up, on Saturday, November 28 at 07:00. The organizer lists Doi Hua Suea, Doi Pha Tang and the Twin Royal Pagodas along the way, and the profile tops out at about 2,150 m.

The hardest climb comes late. From the Mae Chaem Guard Unit at 40.1 km and 1,055 m, you climb to the Relic of the Buddha station at 2,138 m in 7.5 km. The day race is the event's 50K with direct Finals access.

Two pagodas on a forested ridge of Doi Inthanon in golden light, with hazy ranges behind
Bharath Mohan / Unsplash

Chiang Mai Pagoda 50 (Night)

The same Doi Inthanon loop, starting at 18:00.

Distance
56.7 km (35.2 mi)
Climbing
3,600 m (11,811 ft)
Start
Sat, Nov 28, 6:00 PM
Time limit
16 h 30 min

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This one starts at 18:00 on Saturday, November 28, on the day course, so the big climb to the Relic of the Buddha comes in the night or around dawn. You have until 10:30 on Sunday. It costs ฿4,300 against ฿6,400 for the day race, and it isn't one of the races with Finals access.

Chiang Mai Inthanon 20

A short loop from the Doi Inthanon headquarters through rice terraces.

Distance
20.5 km (12.7 mi)
Climbing
800 m (2,625 ft)
Start
Sun, Nov 29, 7:00 AM
Time limit
7 h

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Inthanon 20 starts at the Doi Inthanon headquarters on Sunday, November 29 at 07:00, with a 7 hour limit. It goes out through Pha Mon village and back past the rice terraces of Ban Mae Klang Luang.

Forested ridges and a sea of cloud in the valleys, seen from Doi Inthanon
Wathanyu Chomchuen / Unsplash

Chiang Mai Suthep 20 (Day)

A loop from PAO Park past Montha Than waterfall, on Sunday morning.

Distance
25.6 km (15.9 mi)
Climbing
1,100 m (3,609 ft)
Start
Sun, Dec 6, 6:30 AM
Time limit
7 h

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Suthep 20 starts at PAO Park on Sunday at 06:30 and climbs into Doi Suthep-Pui National Park to about 1,180 m. Then it comes down to Montha Than waterfall, at 692 m and 14.6 km, and on to the finish back at the park. You have 7 hours.

Chiang Mai Suthep 20 (Night)

The Suthep loop on Saturday evening, finishing in the dark.

Distance
25.6 km (15.9 mi)
Climbing
1,100 m (3,609 ft)
Start
Sat, Dec 5, 4:00 PM
Time limit
7 h

Take this course offline

Download its map in Goat Maps and you can find the next aid station without a signal.

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The evening Suthep 20 runs the day course but starts at 16:00 on Saturday, the day before. A headlamp is on the mandatory list for this one but not for the day race. It costs ฿2,600 against ฿3,500.

Chiang Mai Chedi 20

The shortest loop from PAO Park, past a reservoir and flower gardens.

Distance
16.6 km (10.3 mi)
Climbing
700 m (2,297 ft)
Start
Sun, Dec 6, 7:30 AM
Time limit
5 h

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Chedi 20 starts at PAO Park on Sunday at 07:30 and runs around Doi Suthep, past the Mae Jok Luang reservoir and flower gardens. There's one station, at the Huay Tueng Thao reservoir at 7.4 km, and a 5 hour limit.

Registration

Registration opened on July 1, 2026, with the first 48 hours for runners with a UTMB Index. There's no lottery and no waiting list. It stays open until October 31 at 10:00 Thai time, or until a race sells out, and on October 13 it was still open.

For the 50K and longer, a valid UTMB Index is recommended, in that category, the one below it or a longer one. The 20K races don't need one. You must be born in 2005 or earlier for the 50s, 100 and 160, or 2007 or earlier for the 20s.

Fees on the entry site: Chiang Dao 160 ฿11,500, Elephant 100 ฿8,600, Hmong 50 ฿6,800 (day) or ฿4,300 (night), Pagoda 50 ฿6,400 (day) or ฿4,300 (night), Suthep 20 ฿3,500 (day) or ฿2,600 (night), Inthanon 20 ฿3,500 and Chedi 20 ฿2,100.

You can't defer to next year, and without the cancellation insurance (10% of the fee, bought when you enter) there are no refunds. Until October 31 you can move to a shorter distance, with no refund of the difference, or hand your entry to another runner, who pays a 500 baht fee.

Getting there

Fly into Chiang Mai International Airport (CNX). From Bangkok it's a flight of an hour and a quarter to an hour and a half, or about 9 hours by road. PAO Park is behind Chiang Mai's City Hall, and songthaews, the RTC city bus, taxis and Grab get you around town.

The Doi Inthanon headquarters, used for the expo, bib pickup, start and finish on the first weekend, is about 100 km and 2 hours from PAO Park. Shops, a campground and homestays are about 500 m away. Chom Thong, about 30 km down the road, has more hotels on the booking sites, and shuttle buses run between Chiang Mai, Chom Thong and the venue.

Runners in the 160 and 100 get a free shuttle to their start, chosen when you register. Supporters can book one too, leaving the event HQ in Chiang Mai for the 160 start at 06:00, 07:30 or 08:00 and for the 100 start at 05:00, 06:10 or 06:30.

Crewing and drop bags

Only the Chiang Dao 160 and Elephant 100 have crew points: A2, A5, A7, A9, A11 and A13 on the 160, and A9, A11 and A13 on the 100. Your crew needs a Support Pass to get in. One person per runner may help, by handing you a bag of up to 30 liters. They can massage you or treat a blister while you sit in a chair, but no other medical care.

There are no pacers. Running with anyone who isn't in the race is against the rules outside the marked zones near the aid stations.

Drop bags are for the 160 (Sop Kai and Wat Pang Hai) and the 100 only, in the official bags you get at bib pickup. Poles can't go in them: if you use poles, you carry them from the start.

Weather and kit

December in Chiang Mai is dry and mild: an average high of 29.2 °C and low of 16.9 °C, with about one rainy day in the month. Up on Doi Inthanon it's cooler. The Royal Agricultural Station Inthanon, at 1,280 m, averages a November high of 24.4 °C and a low of 14.0 °C, and the Pagoda 50 climbs over 2,100 m.

The organizer decides on a hot or cold weather kit a day or two before the race. Every list has a collapsible cup of at least 150 ml (bottles or flasks with lids don't count), at least a liter of water, and your phone switched on the whole way. Airplane mode gets you a penalty.

Chiang Mai aid stations and GPS coordinates

For crews and spectators: each place on the map in decimal degrees, latitude first. Paste them into any map app or add them as waypoints in Goat Maps.

  • Chiang Mai PAO Park (start and finish)

    320 m (1,050 ft)

    18.83102, 98.96750

  • King Kong Landmark (A17)

    353 m (1,158 ft)

    18.87231, 98.93702

  • Huay Tueng Thao Reservoir (W3)

    357 m (1,171 ft)

    18.86302, 98.94014

  • Mae Chok Luang (W4)

    357 m (1,171 ft)

    18.84157, 98.95140

  • Montha Than Waterfall (A16)

    692 m (2,270 ft)

    18.81684, 98.92585

  • Wat Doi Pui (A15)

    1,400 m (4,593 ft)

    18.81859, 98.88636

  • Chao Pho Luang Upatham 7 School (A14)

    1,015 m (3,330 ft)

    18.86772, 98.85533

  • Maesa Elephant Camp (A13)

    528 m (1,732 ft)

    18.90011, 98.88255

  • Monjam (A12)

    1,276 m (4,186 ft)

    18.93416, 98.82315

  • Wat Pang Hai (A11)

    858 m (2,815 ft)

    18.95849, 98.81950

  • Mae Ka Piang Village (A10)

    723 m (2,372 ft)

    19.00054, 98.80287

  • Wat Phra Phutthabat Si Roi (A9)

    1,056 m (3,465 ft)

    19.01645, 98.76162

  • Wat Ban Iak (A18)

    545 m (1,788 ft)

    19.03879, 98.80236

  • Wat Nong Bua Noi (Elephant 100 start)

    364 m (1,194 ft)

    19.05267, 98.86267

  • Pha Taek Village (A8)

    666 m (2,185 ft)

    19.07578, 98.76615

  • Mae Taeng Watershed Research Station (A7)

    712 m (2,336 ft)

    19.12909, 98.76437

  • Doi Mon Ngo (A6)

    1,248 m (4,094 ft)

    19.17088, 98.77777

  • Sop Kai Village (A5)

    527 m (1,729 ft)

    19.23421, 98.78420

  • Huay Kub Kab Village (A4)

    1,060 m (3,478 ft)

    19.24629, 98.82952

  • Pagia Highland Research Station (A3)

    1,566 m (5,138 ft)

    19.31378, 98.83161

  • Ban Mae Mae School (A2)

    761 m (2,497 ft)

    19.32119, 98.88426

  • Khiri Kiang Dao Garden Home (A1)

    458 m (1,503 ft)

    19.32828, 98.92909

  • Wat Tham Chiang Dao (Chiang Dao 160 start)

    431 m (1,414 ft)

    19.39306, 98.92913

  • Doi Inthanon National Park HQ (start and finish)

    1,247 m (4,091 ft)

    18.53616, 98.52212

  • Mae Klang Luang School (B1)

    1,062 m (3,484 ft)

    18.53627, 98.54717

  • Pha Tang Junction (B2)

    1,585 m (5,200 ft)

    18.50562, 98.52808

  • Mae Uam Water Resource Management Office (B3)

    1,588 m (5,210 ft)

    18.50711, 98.49967

  • Mae Chaem Guard Unit (B4)

    1,055 m (3,461 ft)

    18.52490, 98.45464

  • Relic of the Buddha (B5)

    2,138 m (7,014 ft)

    18.55282, 98.48013

  • Pha Mon Village (B6)

    1,194 m (3,917 ft)

    18.56576, 98.55363

Chiang Mai FAQ

When is Chiang Mai Thailand by UTMB 2026?

From November 27 to December 6, 2026. Pagoda 50 runs on November 28 and Inthanon 20 on November 29, both at Doi Inthanon. The Chiang Dao 160 and Elephant 100 start on December 4, the Hmong 50 and the night Suthep 20 on December 5, and the day Suthep 20 and Chedi 20 on December 6, all finishing at PAO Park.

Is Chiang Mai a UTMB World Series Major?

Yes, it's the Asia-Pacific Major for 2026. Majors give double Running Stones, and the top 10 men and women in the 100M, 100K and 50K categories qualify for the UTMB World Series Finals. Here those are the Chiang Dao 160, Elephant 100 and Pagoda 50 (Day).

Do I need a UTMB Index to enter?

It's recommended for the 50K races and up, and not needed for the 20K races. Index holders got the first 48 hours of registration to themselves.

Can I have a pacer at Chiang Mai by UTMB?

No. Being accompanied by anyone not registered in the race is against the rules outside the marked zones near aid stations. Crews can help at set aid stations on the 160 and 100 only.

What's the difference between the Day and Night races?

The course and aid stations are the same, with an afternoon or evening start, a lower fee and cutoffs shifted to match. The night races finish in the dark or the next morning. Of the 50s, only Pagoda 50 (Day) has direct Finals access.

Is there cell service on the course?

You must carry a phone with international roaming, keep it on, and run the LiveTrail app. The rules also allow for areas where only emergency calls get through. Download the map beforehand so you have it either way.

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O abre el mapa web

Updated . An unofficial guide, from the organizer's published information. Coordinates from the organizer's course and OpenStreetMap contributors. Photos from Unsplash. Organize a race? We help with course files.