Course
Marathon42.2 km
Half Marathon21.1 km
10K Run10 km
3K Smile Run3 km
Key dates
- ★Race dayDecember 2026 · date to be announced
Provisional date, projected from last year — the organiser has not announced this edition yet. We show the month only.
About
The Chiang Mai Marathon starts at Tha Phae Gate, the historic entrance to Chiang Mai's old walled city in northern Thailand. Runners take on marathon, half marathon, 10K and 3K distances through the city each December.
Your next race, seen from above.
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Save Chiang Mai Marathon to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.