What race distances and categories are offered at the 2025 Chiang Mai Marathon?

• →Marathon (42K) with a 3 AM start and 10 AM cut-off time
• →Half Marathon (21K) with a 4 AM start and 7:30 AM cut-off time
• →10K Run with a 5 AM start and 6:30 AM cut-off time
• →3K Smile Run (non-competitive) with a 5:15 AM start, including Kids Run and Fancy Run options

What are the registration fees for international participants?

• →Marathon: 2,400 THB
• →Half Marathon: 1,800 THB
• →10K Run: 1,000 THB
• →Smile Run: 750 THB
• →Kids Run: 650 THB

When is the registration period and expo?

Charity registration opens December 1–15, 2025. The Expo Day for race pack collection runs December 19–20, 2025, at Tha Phae Gate.

What is the expected weather during the marathon?

Participants can expect flat terrain with no hills throughout the course, with temperatures ranging from 12–18°C. These mild conditions are favorable for distance running in December.

What awards and prizes are available?

Trophies and medals are awarded to top finishers in each category. Prize money includes:

• →Marathon 1st place: 7,000 THB
• →Half Marathon 1st place: 5,000 THB
• →10K 1st place: 3,000 THB
• →Fancy Run 1st place: 5,000 THB

What is included in the race registration?

Participants receive event souvenirs including shirts, finisher T-shirts for 42K participants, medals, and a goodies bag. Shuttle service is provided from the finish line back to Tha Phae Gate.

What is the significance of this marathon event?

The Muang Thai Chiang Mai Marathon is Thailand's largest marathon with the highest number of foreign participants. Past editions have attracted over 10,000 runners from 50+ countries. The event supports Thailand's "Amazing Thailand Grand Tourism and Sports Year 2025" initiative and promotes Chiang Mai's bid for UNESCO World Heritage City recognition.

What level of international participation is expected?

Over 2,000 international runners are expected to participate in 2025. Top countries with registered participants include Malaysia (304), South Korea (255), China (213), Myanmar (128), Singapore (127), Japan (117), USA (110), and UK (87).

What time do the races start?

Race start times are staggered to accommodate different distances:

• →Marathon starts at 3:00 AM
• →Half Marathon starts at 4:00 AM
• →10K Run starts at 5:00 AM
• →3K Smile Run starts at 5:15 AM

What are the cut-off times for each race category?

• →Marathon cut-off: 10:00 AM
• →Half Marathon cut-off: 7:30 AM
• →10K Run cut-off: 6:30 AM