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The Mae Hong Son ultramarathon is the 500 Thailand multi-day trail race, which will be held from November 22 to 29, 2026 in Pai. Participants can choose from four distances: 100, 200, 300 and 500 km. The longest is designed for seven days and 168 hours. This format is for those who choose a long running route and want to determine in advance which distance suits them. The venue is the Pai District Office in Mae Hong Son province. The exact start times and the schedule for each distance are not confirmed in the available official materials. If you plan to take part, check current information on registration, timing and conditions with the organizer.
Race distances
The program includes four options: 100, 200, 300 and 500 km. They let you choose different levels of challenge, but detailed differences between the distances, including routes and schedules, are not given in the available materials.
For the 500 km distance, the organizer specifies a seven-day format, or 168 hours. This is a separate description of the longest distance and cannot be applied to the other options. If you are comparing distances, check their conditions and schedule with the organizer.
When and where
The race will take place from November 22 to 29, 2026 in Pai, Mae Hong Son province, Thailand. The venue is the Pai District Office. The street and address number are not given in the available information.
The exact race start time and the start schedule for each distance are not confirmed. Before your trip, check these details against the organizer’s official materials. You can find additional events and holidays in the country in the Thailand events and holidays calendar for 2026.
Participation Terms
The race organizer is Route Map Co., Ltd. The registration page lists a general participant type; additional requirements and entry conditions are not disclosed in the available information. The street and number of the venue are also not given, so check the address and arrival arrangements before traveling.
The participation fee is not given in the available materials — check the current amount and registration procedure with the organizer. Information on required equipment, route rules and start times for each distance also needs to be requested separately.
Frequently Asked Questions ❓
When is 500 Thailand — Second Edition?
The race is scheduled for November 22–29, 2026. The dates are published on the event’s official website.
What distances are available?
The program lists distances of 100, 200, 300 and 500 km. Check the detailed start schedule for each option with the organizer.
How much does participation cost?
Check the current cost and registration procedure with the organizer. Check the conditions on the official registration page before submitting an application.
Conclusion
500 Thailand — Second Edition will bring together four distances in Pai from November 22 to 29, 2026. Before choosing a distance and traveling, check the schedule and participation conditions with the organizer.