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Will take place on December 5, 2026, at the Special Warfare School and the Huai Krathaek reservoir in Lopburi province. Participants can choose from distances of 21.1, 10 and 4 km, with starts in the morning and evening. Current as of October 2026. The official announcement lists the start time for each distance and the time limit for completing the course. The fee depends on the distance you choose. For online registration terms and up-to-date details before you travel, check with the organizer — in the official race announcement.
Distances and Start Times
For the longest distance, the start is set for 5:30 a.m., and for the 10 km distance, at 6:30 a.m. Participants in the 4 km distance start at 17:30. The cutoff times are 4 hours, 2 hours and 1.5 hours, respectively.
Starts are spread between morning and evening. Check the schedule for your specific distance: start time depends on the distance you choose, and the publication does not specify the starting location.
When and Where
The race will take place December 5, 2026 at the Special Warfare School and the Huai Krathaek reservoir in Lopburi province. The official announcement gives the coordinates of the venue: 14°48’35.5"N 100°41’22.4"E. The street and postal addresses are not given.
The official announcement gives the venue at the school and reservoir, but does not specify the start location for each distance. Other opening hours for the sites are not given in the official materials.
Participation Terms
The registration platform (RUNLAH) lists the participation fees: 950 baht for 21.1 km, 800 baht for 10 km and 650 baht for 4 km. Prices and registration terms may change, so check them with the organizer before signing up.
Starter kits are collected in person. During the race, participants must wear a wristband to confirm their identity. The time and place for collecting the kit are not given in the official announcement.
Information on routes to the venues, parking, clothing requirements and other access conditions is not provided. Check these details with the organizer before you travel.
Frequently Asked Questions ❓
When is the half marathon in Lopburi?
The Race will take place on December 5, 2026. The start is set for 5:30 a.m. for the longest distance, 6:30 a.m. for the 10 km distance and 17:30 for the 4 km distance.
Where is the race held?
The venue is the Special Warfare School and the Huai Krathaek reservoir in Lopburi province. The official announcement gives the coordinates 14°48’35.5"N 100°41’22.4"E; no postal address is given.
How much does it cost to take part?
The registration page on the platform (RUNLAH) lists the prices: 950 baht for 21.1 km, 800 baht for 10 km and 650 baht for 4 km. Check the current terms with the organizer before registering.
How do I get the starter kit?
The starter kit is collected in person. The wristband must be worn during the race to confirm identity; the time and place for collecting the kit are not given in the official announcement.
Conclusion
The half marathon in Lopburi offers three distances with different start times, from early morning to evening. If you plan to take part, check the registration terms, starter kit collection and venue access with the organizer in advance.