Lopburi21 2026 Sunflower Half Marathon

Lopburi21 2026 Sunflower Half Marathon is on Saturday 5 December 2026 at the Special Warfare School in Lop Buri, over 21.1 km, 10 km and a 4 km walk-run.

Facts last checked September 29, 2026

Lopburi21 2026 Sunflower Half Marathon is a running event on Saturday 5 December 2026, based at the Special Warfare School (Rong Rian Songkhram Phiset) in Lop Buri. The organiser is listed as LOPBURI 21. The Regis.run entry page offers a 21 km half marathon, a 10 km race and a 4 km walk-run titled "following Father's footsteps".

Key facts
Date	2026-12-05
Distance Km	21.1, 10
Primary Distance Km	21.1
Venue	Special Warfare School
Organizer	LOPBURI 21
Price Range	THB 650-950
City	Lop Buri
Country	Thailand

half-marathon thailand

Frequently asked questions

How much is entry to Lopburi21?

The 21 km costs THB 950 with a shirt or THB 800 without one, and both options include a finisher shirt and a finisher medal. The 10 km costs THB 800 with a shirt or THB 650 without. The 4 km walk-run costs THB 650.

Is there a charity option at Lopburi21?

Yes. Regis.run lists a Charity Package alongside the general entry, with the donation going to a Huai Krathaek maintenance fund without deductions for costs. The event is on a Saturday, 5 December 2026.