🇹🇭 Thailand: half marathons
40 races scheduled between October 2026 and August 2027. Cities with the most races: Bangkok, Chiang Mai and Nong Phai Lom. Every race lists dates, locations, distances and official links; the list is updated daily.
25OCT 26
HALF10K5K
Mae Moh Half MarathonMae Mo · Thailand · in 5 days
01NOV 26MARATHON21K10K5K
Amazing Nan MarathonBan Si Phan Ton · Thailand · in 12 days01NOV 26
HALF10K5K3K
Scenic Half Marathon Chiang MaiBan Om Kon · Thailand · in 12 days07NOV 26
HALF11K5K
Sangkhla Sunset RunSangkhla Buri · Thailand · in 18 days
08NOV 26MARATHON21K10K5K
Korat MarathonNong Phai Lom · Thailand · in 19 days15NOV 26
MARATHON21K10K5K
Bangkok MarathonBangkok · Thailand · in 26 days
21NOV 26HALF10K5K3K
Allianz Ayudhya World Run Thailand Series Nakhon RatchasimaNong Phai Lom · Thailand · in 32 days · 21K · US$2922NOV 26
MARATHON21K11K5K
Phichit Running ChallengeTambon Kha Mang · Thailand · in 33 days22NOV 26
HALF11K5K
Rayong MarathonRayong · Thailand · in 33 days
22NOV 26HALF10K5K
Run for freedom : Bitcoin Half MarathonChiang Mai · Thailand · in 33 days · 21K · US$30
28NOV 26MARATHON21K10K4.5KRegistration open
Amazing Thailand Marathon BangkokBangkok · Thailand · in 39 days
05DEC 26HALF10K5K
International Anti-Corruption Day RunBangkok · Thailand · in 46 days · 21K · US$26
12DEC 26MARATHON21K10K5K
Scenic Half Marathon Nakhon PhanomNakhon Phanom · Thailand · in 53 days · 42K · US$43.50
13DEC 26MARATHON21K11K6K
Kathu MarathonKathu · Thailand · in 54 days13DEC 26
MARATHON21K10K5K
Photak MarathonBan Phon Thong · Thailand · in 54 days20DEC 26
HALF
Bangsaen21 Half MarathonHuai Kapi · Thailand · in 61 days
20DEC 26MARATHON21K10K3K
Chiang Mai MarathonChiang Mai · Thailand · in 61 days · 42K · US$46
20DEC 26HALF11K6K
Sakon Run DerBan Na Mueang · Thailand · in 61 days09JAN 27
MARATHON21K10K5K
Khao Yai MarathonMu Si · Thailand · in 81 days · 42K · US$37
09JAN 27MARATHON21K12K4.5K
Khon Kaen International MarathonKhon Kaen · Thailand · in 81 days
10JAN 27MARATHON21K10K5K
Bangkok MarathonBangkok · Thailand · in 82 days · 42K · US$75
10JAN 27HALF10K5K3K
RAM HERO RUNBangkok · Thailand · in 82 days17JAN 27
MARATHON21K10K
Chombeung MarathonChom Bueng · Thailand · in 89 days
23JAN 27MARATHON21K10K4.6K
Buriram MarathonBuri Ram · Thailand · in 95 days
31JAN 27MARATHON21K10K5K
GIVE GREEN CBD Bangkok MarathonBangkok · Thailand · in 103 days
31JAN 27MARATHON21K10K5K
เชียงราย มาราธอนChiang Rai · Thailand · in 103 days · 42K · US$36
13FEB 27HALF10K5K3K
Scenic Half Marathon PranburiProvincia di Prachuap Khiri Khan · Thailand · in 116 days · 21K · US$3514FEB 27
HALF
Khonkaen 21Ban Si Thani · Thailand · in 117 days
21FEB 27MARATHON21K10K5K
Chaiyaphum MarathonNai Mueang · Thailand · in 124 days21FEB 27
MARATHON21K10K5K
Tatmok MarathonBan Cha Liang Lap · Thailand · in 124 days09MAY 27
MARATHON21K10K5K
Hua Hin MarathonHua Hin · Thailand · in 201 days16MAY 27
HALF10K5K
Rama 8Bangkok · Thailand · in 208 days · 21K · US$25.5030MAY 27
MARATHON21K10K5K
อะเมซิ่งแพร่มาราธอนThung Kwao · Thailand · in 222 days · 42K · US$33.50JUN 27
HALF10K5K3K
Chanthaburi Half MarathonChanthaburi · Thailand12JUN 27
MARATHON21K10K5K
Laguna Phuket MarathonBan Bang Thao · Thailand · in 235 days · 42K · US$9520JUN 27
MARATHON21K10K5K
อะเมซิ่งกำแพงเพชรมาราธอนBan Si Yothin · Thailand · in 243 days · 42K · US$34JUL 27
MARATHON21K10K
Marathon de PattayaPattaya · ThailandJUL 27
MARATHON21K11K5K
Yala MarathonYala · ThailandAUG 27
HALF10K
Rayong Half MarathonRayong · ThailandAUG 27
MARATHON21K10K5K
Songkhla MarathonSongkhla · Thailand