UDON21 2026

UDON21 2026 is on Sunday 25 October 2026 in Udon Thani, over 5 km, 10 km and 21.1 km.

Facts last checked September 29, 2026

UDON21 2026 is organised by About The Race in Udon Thani, with entries on race.thai.run. The organiser pitches it as a race for personal bests. The half marathon starts at 03:30, the 10 km at 04:15 and the 5 km at 04:30. Overall winners of the 21 km receive THB 5,000, 4,000 and 3,000.

Key facts
Date	2026-10-25
Distance Km	21.1, 10, 5
Primary Distance Km	21.1
Organizer	About The Race
Price Range	THB 600-950
City	Udon Thani
Country	Thailand

half-marathon thailand

Frequently asked questions

What time does the UDON21 half marathon start?

The organiser lists a 03:30 start for the 21 km half marathon, 04:15 for the 10 km and 04:30 for the 5 km. These early starts are given on the race.thai.run registration page.

How much does UDON21 2026 cost?

The regular price is THB 850 for the 21 km, THB 750 for the 10 km and THB 600 for the 5 km. The last-minute price, from 1 to 10 October, is THB 950, 850 and 700.