Calendar

Thailand: half marathon (10–25 km) races

Upcoming races, with dates, distances and the link to enter.

11races

Updated weekly

October 20262

25OCT
Sunday · Num nao, Thailand
Nam Nao Geopark Trail
23 km37 km56 kmTrail
See the detailsExternal entry — opens on an external siterunlah.com
25OCT
Sunday · Lampang, Thailand
Mae Moh Half Marathon
21.097 kmRoad
See the details

1NOV
Sunday · Ban Paeng, Thailand
ULTRA NAKEE NAKA TRAIL
16 km34 km47 kmTrail
See the detailsExternal entry — opens on an external sitefacebook.com
8NOV
Sunday · Chiang Rai, Thailand
Ruammit Ultra Trail
12 km35 km50 kmTrail
See the detailsExternal entry — opens on an external siterace.thai.run
8NOV
Sunday · Pha Hob, Thailand
Ultra Trail Pha Hob
16 km36 km47 kmTrail
See the detailsExternal entry — opens on an external sitefacebook.com
22NOV
Sunday · Nakhon Ratchasima, Thailand
Korat Marathon
21.097 kmRoad
See the detailsOfficial site — opens on an external sitekoratmarathon.com
28NOV
Saturday · Bangkok, Thailand
Amazing Thailand Marathon Bangkok 21k - Official Bangkok Capital City Marathon
21.097 kmRoad
See the detailsOfficial site — opens on an external siteamazingthailandmarathon.com

11DEC
Friday · Mae Takhrai National Park Thailand, Thailand
Mae Takhrai Trail
to 13 December 2026
9 km24 km33 km56 kmTrail
See the detailsExternal entry — opens on an external sitefacebook.com
13DEC
Sunday · Nakhon Phanom, Thailand
Scenic Half Marathon Nakhon Phanom
21.097 kmRoad
See the detailsOfficial site — opens on an external sitescenicmarathon.com
19DEC
Saturday · Chiang Dao, Thailand
CHIANG DAO 100
to 20 December 2026
20 km36 km53 km104 kmTrail
See the detailsExternal entry — opens on an external siterace.thai.run
20DEC
Sunday · Chon Buri, Thailand
Bangsaen21
21.097 kmRoad
See the detailsOfficial site — opens on an external sitebangsaen21.com