Sport · Central
River Kwai International Half Marathon 2026, Kanchanaburi
Thailand's oldest half marathon, run in Kanchanaburi each December since the 1980s.
Tentative date
Tentative date. The organiser has not published dates for this edition yet. This window comes from the previous edition or tradition, and the dates can move. Confirm at the official source before booking travel around it.
- Dates
- Sun 06 Dec 2026
- Date status
- Tentative date, from the previous edition or tradition. Not yet confirmed.
- Venue
- River Kwai, Kanchanaburi
- City
- Kanchanaburi
- Province
- Kanchanaburi
- Region
- Central
- Category
- Sport
- Tickets
- Paid
- When it runs
- First Sunday of December annually
- Checked
- Tue 27 Oct 2026 against the official source
About this event
The River Kwai International Half Marathon is one of Thailand's longest running road races, held in Kanchanaburi in early December. The 2026 date is not yet published by the organiser, so this record is expected: it follows the pattern of the first Sunday of December.
Booking
Booked around the event: hotels, passes, transfers and eSIM. Booking options for this event are being checked and will be added here.
Official source: https://www.thailandfestival.org. Dates checked Tue 27 Oct 2026.