The Setting: Pho Tak, Nong Khai — Mekong River Country
Nong Khai is Thailand's northeasternmost province, stretched along the Mekong River with Laos visible from the riverbank. [1] Pho Tak is a district west of Nong Khai city, and the race route is likely to feature rural roads, river views, and the flat terrain characteristic of the Mekong floodplain. December is Isan's cool, dry season — morning temperatures in the mid-teens Celsius, among Thailand's best running conditions.
Registration: THB 350–1,000
The entry fee is the headline: THB 350–1,000 for a full marathon, which is roughly USD 10–28. [1] At that price, it's one of the most accessible full marathons in Southeast Asia. Registration is currently open, making this a bookable option for the December 2026 calendar.
Should You Run It?
If you want an affordable, community-flavoured Isan marathon with cool-season conditions and a Mekong River backdrop, the Photak Marathon is a solid pick. The 6th edition is set for 13 December 2026 in Pho Tak, Nong Khai. [1]