Khaoyai 100K Ultra Marathon 2026

The Khaoyai Ultra Marathon in Isan takes place on December 19, 2026, in Nakhon Ratchasima.
ONE Lumpinee 183 tournament

The bout between Nico Carrillo and Nabil Anane in Bangkok is a title rematch on December 18, 2026, at Lumpinee Stadium.
Nakornthon charity mini-marathon

The Nakornthon mini-marathon in Bangkok takes place December 13, 2026, at Nakornthon Hospital; the start is at 05:00.
Kasetsart University charity run

The charity run in Bangkok takes place December 13, 2026, at Insee Chanthrasathit Stadium of Kasetsart University.
Exhibition “Merai Thailand 2026”

The Thai drinks exhibition in Bangkok takes place December 10–13, 2026, at Emsphere.
All-Ages Race

All-Ages Race in Bangkok — December 13, 2026, at Samitivej Srinakarin Hospital.
Race in Uttaradit

The race in Uttaradit takes place on December 13, 2026, at Uttaradit Technological College; distances of 5 and 10 km are available.
Marathon in Nakhon Phanom

The marathon in Nakhon Phanom takes place on December 13, 2026, at Lan Saeng Sing Kaeo in Isan.
29th Kathu Marathon in Phuket

The Kathu Marathon in Phuket takes place on December 13, 2026; distances from 2.5 to 42 km are offered.
Charity run “Run For The Frontline 2026” in Ratchaburi

The race in Ratchaburi takes place on December 13, 2026, at Ratchaburi Stadium and Si Suriyawong Camp.