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Half Marathon Races in Thailand: 2026-2027 Calendar

Races in Buriram, Bangkok, Khon Kaen and 8 other cities. This list is rebuilt from the directory on every publish, so it shows what is open to enter now rather than a snapshot of an earlier calendar.

15 races Sep 2026 – Jun 2027 15 with in-depth reviews

Ranked by review score — highest first

  1. 23JAN
    1. Buriram Marathon Presented by Chang Mineral

    Buriram, Thailand

    Offers a choice of two distances: full marathon (42.195 km) and half marathon (21.1 km)

    Full Marathon (42.2km) Half Marathon (21.1km)
    Read the full review →
  2. 10JAN
    2. 37th Bangkok Marathon

    Bangkok, Thailand

    Iconic, historic venue beside the Grand Palace in Bangkok

    Full Marathon (42.2km) Half Marathon (21.1km) 10K
    Read the full review →
  3. 10JAN
    3. Khon Kaen International Marathon (22nd ed.)

    Khon Kaen, Thailand

    Long-standing race history, now in its 22nd edition

    Full Marathon (42.2km) Half Marathon (21.1km) 5K (5.4km)
    400-2,500 THB
    Read the full review →
  4. 31JAN
    4. Chombueng Marathon (40th ed.)

    Chom Bueng, Ratchaburi, Thailand

    Long-running event now in its 40th edition, suggesting an established history

    Full Marathon (42.2km) Half Marathon (21.1km)
    Read the full review →
  5. 28NOV
    5. Amazing Thailand Marathon Bangkok (ATMB)

    Bangkok, Thailand

    Backed by major organizers including the Royal Thai Government, Bangkok Metropolitan Administration, and World Athletics

    Full Marathon (42.2km) Half Marathon (21.1km) 10K 5K (4.5km)
    USD 23
    Read the full review →
  6. 20DEC
    6. Muang Thai Chiang Mai Marathon

    Chiang Mai, Thailand

    Scenic route starting at the historic Tha Phae Gate and finishing at the King Naresuan the Great Monument

    Full Marathon (42.2km) Half Marathon (21.1km) 10K
    THB 1500
    Read the full review →
  7. 1NOV
    7. Scenic Half Marathon Chiang Mai (CMSH)

    Chiang Mai, Thailand

    Held at Royal Park Rajapruek, a notable venue in Chiang Mai

    Half Marathon (21.1km) 10K 5K
    Read the full review →
  8. 10JAN
    8. Khao Yai Marathon (B-Quik Khao Yai Marathon 2027)

    Pak Chong, Nakhon Ratchasima, Thailand

    Set in Pak Chong, Nakhon Ratchasima, a specific and identifiable Thailand location

    Full Marathon (42.2km) Half Marathon (21.1km) 10K 5K
    Read the full review →
  9. 12JUN
    9. Laguna Phuket Marathon 2027

    Ban Bang Thao, Phuket, Thailand

    Scenic venue at Laguna Phuket, a well-known resort destination in Ban Bang Thao, Phuket

    Full Marathon (42.2km) Half Marathon (21.1km) 10K 5K
    Read the full review →
  10. 27SEP
    10. Amazing Thailand Pattaya Marathon (33rd ed.)

    Pattaya, Chonburi, Thailand

    79 score

    Long-running event history as the 33rd edition suggests established organization

    Full Marathon (42.2km) Half Marathon (21.1km) 10K 5K (4.5km)
    Read the full review →
  11. 8NOV
    11. Korat Marathon

    Nakhon Ratchasima, Thailand

    Located in Nakhon Ratchasima, Thailand, offering an accessible international race destination

    Full Marathon (42.2km) Half Marathon (21.1km) 10K 5K
    Read the full review →
  12. 20DEC
    12. Bangkok Midnight Marathon 2026

    Bangkok, Thailand

    Scenic urban route through Bangkok's Rama VIII Bridge and Sanam Luang area

    Half Marathon (21.1km) 10K
    Read the full review →
  13. 31JAN
    13. Thai Sikh Run (31st ed.)

    Bangkok, Thailand

    Long-running event now in its 31st edition, suggesting an established tradition

    Half Marathon (21.1km) 10K
    Read the full review →
  14. 1MAY
    14. Amazing Thabo Midnight Marathon

    Tha Bo, Nong Khai, Thailand

    Set in Tha Bo, Nong Khai, offering a distinct regional Thailand race location

    Full Marathon (42.2km) Half Marathon (21.1km) 10K 5K
    Read the full review →
  15. 31JAN
    15. Chiangrai Marathon

    Chiang Rai, Thailand

    Offers a choice of two distances: full marathon (42.195 km) and half marathon (21.1 km)

    Full Marathon (42.2km) Half Marathon (21.1km)
    Read the full review →