Trail races in Thailand
2 half marathons and 7 ultras on trails in Thailand.
The next one is the Chiang Mai by UTMB Pagoda 50 on 28 November 2026.
The flattest is the Amazean Jungle Thailand Mist 20K (1,000 m of climbing); the hilliest is the Chiang Mai by UTMB Chiang Dao 160 (9,800 m).
For cool racing conditions, the Chiang Mai by UTMB Pagoda 50 usually starts around 15°C.
UTMB
Chiang Mai by UTMB Pagoda 50
Doi Inthanon National Park, Thailand
28 Nov 2026In 34 days
Gain
3,600 m
Start temp
15°C
Entry
$195
Top 10, men 40–49: No data
57 kmTrailOpen entryhilly
UTMB
Chiang Mai by UTMB Chiang Dao 160
Chiang Dao, Thailand
4 Dec 2026In 40 days
Gain
9,800 m
Start temp
24°C
Entry
$350
Top 10, men 40–49: No data
173 kmTrailOpen entryhilly
UTMB
Chiang Mai by UTMB Elephant 100
Chiang Mai, Thailand
4 Dec 2026In 40 days
Gain
5,500 m
Start temp
21°C
Entry
$260
Top 10, men 40–49: No data
100 kmTrailOpen entryhilly
UTMB
Chiang Mai by UTMB Hmong 50
Chiang Mai, Thailand
5 Dec 2026In 41 days
Gain
3,000 m
Start temp
19°C
Entry
$205
Top 10, men 40–49: No data
63 kmTrailOpen entryhilly
UTMB
Chiang Mai by UTMB Suthep 20
Chiang Mai, Thailand
6 Dec 2026In 42 days
Gain
1,100 m
Start temp
19°C
Entry
$105
Top 10, men 40–49: No data
26 kmTrailOpen entryhilly
UTMB
Amazean Jungle Thailand Betong 100M
Betong, Thailand
30 Apr 2027In 6 months
Gain
5,600 m
Start temp
27°C
Entry
$295
Top 10, men 40–49: No data
115 kmTrailOpen entryhilly
UTMB
Amazean Jungle Thailand Jungle 50K
Betong, Thailand
1 May 2027In 6 months
Gain
2,600 m
Start temp
22°C
Entry
$130
Top 10, men 40–49: No data
56 kmTrailOpen entryhilly
UTMB
Amazean Jungle Thailand Tunnel 100K
Betong, Thailand
1 May 2027In 6 months
Gain
4,400 m
Start temp
23°C
Entry
$220
Top 10, men 40–49: No data
91 kmTrailOpen entryhilly
UTMB
Amazean Jungle Thailand Mist 20K
Betong, Thailand
2 May 2027In 6 months
Gain
1,000 m
Start temp
23°C
Entry
$70
Top 10, men 40–49: No data
26 kmTrailOpen entryhilly