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The 109 Years UD Run takes place January 10, 2027 in Sukhothai city. The school is holding it to mark its 109th anniversary: runners can choose from 3, 5, and 10 km distances. The first start is set for 05:45, so if you plan to run, it’s important to choose your distance in advance and understand how to collect your starter kit.
The race also has a charitable goal. According to the event announcement, the funds left after expenses are to go toward creating a school science lab. Below are the confirmed start times, fees, and participation terms. Current as of: October 2026. Before traveling, check the details on the registration page: the organizer may update the event’s procedures.
Why the race is held
The occasion is the 109th anniversary of Udomdaruni School. Participants can choose the short 3 km distance or run 5 or 10 km. This is one race with several distances, each with its own start time.
The stated goal of the fundraising is a school science lab. Organizers plan to direct the income to it after expenses are deducted; the amount of future income is not stated in the official materials.
When and where
The race will take place January 10, 2027 at Udomdaruni School in Sukhothai city. The date and venue for the year in question are listed in the official race announcement.
School address: 351 Charotwithithong Road, Thani subdistrict, Mueang Sukhothai district, Sukhothai province, 64000. Use this address when planning your route: the organizer does not specify a particular travel route in the materials provided.
The first start is at 05:45 Thailand time: the 10 km distance starts then. Runners on the 5 km start at 06:00, and runners on the 3 km start at 06:15. The end time of the event is not given in the official materials.
Distances and fees
For the 10 km the start is listed at 05:45 and the fee is 550 baht. For the 5 km — start at 06:00 and the fee is 450 baht. For the 3 km — start at 06:15 and the fee is 300 baht. The separate rate for school alumni is 1,457 baht for any of these distances; the start time depends on the chosen distance.
Online registration is open until December 1, 2026, 23:59. Distances and registration terms are listed on the event page. When choosing a distance, check its start time against your registration: the rules do not allow starting more than 15 minutes after the scheduled time.
Participation Terms
The starter kit must be collected in person, by presenting an ID card or passport that matches your registration details. Kits are not handed out on race day. The collection date and time are not given in the official materials available, so check them with the organizer before traveling.
For running, choose familiar, comfortable clothing and footwear. Arrive at the venue with time to spare: each distance has its own start time, and you may not start more than 15 minutes after the scheduled time.
If you are looking for events for another trip, the site has an article about buffalo racing in Chonburi, · RU and it also has the Thailand events calendar for 2026.
Frequently Asked Questions ❓
When and where is the Udomdaruni School run?
The race is scheduled for January 10, 2027 at Udomdaruni School, Sukhothai city. The first start, for the 10 km distance, is set for 05:45 Thailand time.
How much does it cost to take part?
The fee is 300 baht for 3 km, 450 baht for 5 km, and 550 baht for 10 km. A separate rate of 1,457 baht applies to school alumni for each of these distances.
Can I collect the starter kit on race day?
No, the registration rules rule out handing out kits on the day of the competition. You must collect it in person, showing an ID card or passport; check the collection date and time with the organizer.
What happens if I'm late for the start?
Each distance has its own scheduled start time. The rules do not allow starting more than 15 minutes after it.
Conclusion
The Udomdaruni School run combines three distances with fundraising for a school science lab. If you want to take part, choose a distance, register by the stated deadline, and check in advance how to collect your starter kit.