UDON21

UDON21 is a competition held to develop sports potential. Find runners who perform well continuously in every competition. Also, promote and stimulate the economy in Udon Thani province during the day of the competition.

Half Marathon – 21 km

Overall: Male/Female

• 1st Place: 1,800 THB + Trophy (1 award)
• 2nd Place: 1,500 THB + Trophy (1 award)
• 3rd Place: 1,200 THB + Trophy (1 award)

Age Group: Male/Female

• 1st to 3rd Place: Trophy

Mini Marathon – 10 km

Overall: Male/Female

• 1st Place: 1,100 THB + Trophy (1 award)
• 2nd Place: 1,000 THB + Trophy (1 award)
• 3rd Place: 900 THB + Trophy (1 award)

Age Group: Male/Female

• 1st to 3rd Place: Trophy

Micro Marathon – 5 km

Overall: Male/Female

• 1st to 10th Place: Trophy

Half Marathon – 21 km

Age group is calculated based on birth year (Event year minus athlete’s birth year)

Mini Marathon – 10 km

Age group is calculated based on birth year (Event year minus athlete’s birth year)

Micro Marathon – 5 km

No age categories or competition by age group

Saturday 25 October 2025

• Time : 10.00 am - 7.00 pm
• Venue : Central Udon, Udon Thani
• Google Map :https://maps.app.goo.gl/3ZuG6oiYpLSuCEKy9

For self-collection, please bring along :

• Registration Tracking Number or Barcode (email or check from here)
• Citizen ID Card/Passport

Sunday, October 26, 2025

Central Udon Shopping Mall, Udon Thani

Google Map: https://maps.app.goo.gl/3ZuG6oiYpLSuCEKy9

1. The UDON21 event organizes competitions according to the rules. Based on the rules of the International Athletics Federation (IAAF) street running competition

2. The runner must attach the running identification number to the front of the chest. It can be seen if the runner's identification number cannot be seen. Due to any reason, such as attaching the wrong running number, age group, or other reasons that make it impossible to determine what type of runner competes in any type or age group. The organizer reserves the right to award in all cases.

3. If you do not pass one of the checkpoints, the result of the race will be DQ or Disqualify, which means that the runner does not complete the route and will be disqualified from receiving medals.

   • Gun Time is the official competition time. It is considered that all runners start at the same time at the second the release signal begins.
   • Chip Time is personal time by starting the time when the runner passes the actual starting point until the finish line.

4. Cut-off time (Cut-off Time) is the cut-off of the runner from the Gun time to open the area and traffic throughout the race route with the cut-off time as follows:

   • 21 km Cut-off time: 4.00 hr.
     • Cut-off 6th kilometer at 5.00 a.m.
     • Cut-off kilometer 12 at 6:00 a.m.
     • Cut-off kilometer 18 at 7.00 a.m.
   • 10km Cut-off time: 2.00 hr.
     • Cut-off at the 6th kilometer at 5.45 a.m.
   • 5km Cut-off time: 1.30 Hr.
     • Cut-off at the finish line at 6.30 a.m.

5. The UDON21 event will be released at the time provided. But if there is a safety case in the running track, there may be a delay in release. The cut-off time will be counted from the second the release begins.

6. Prize money and award plaques will be determined based on the results of the Gun Time recorded in the timer chip system only, which will be given to runners who apply correctly according to the rules and attach a clear running number (bib) as well as pass the checkpoint (Checkpoint) completely.

7. The organizing team reserves the right to refrain from awarding award plaques in case it is detected that the name of the runner and the running number (bib) attached are not the same person.