Huai Yang Trail 2026 - Chaiyaphum, Thailand

Huai Yang Trail 2026 returns for its ninth-anniversary edition in the forested hills surrounding Nam Phut Thap Lao (Thap Lao Spring Arboretum) in Khon San District, Chaiyaphum. The setting is known for its clear spring-fed streams, wooded trails and natural pools. Organiser announcements confirm racing on Sunday 20 December 2026, with race-pack collection on Saturday.

Courses and race-day programme (Thailand time)

• 50K / HYT50: actual published route 50.64 km, approximately 1,720 m elevation gain. Starts 04:00; 12-hour 30-minute total limit, finishing by 16:30. Checkpoints include CP6 at 12:00 and CP9 at 15:00.
• 35K / HYT35: actual published route 34.62 km, approximately 1,241 m elevation gain. Starts 04:30; 10-hour limit, finishing by 14:30. Checkpoints include CP3 at 09:30 and CP9 at 13:00.
• 15K: actual published route 14.71 km, approximately 430 m elevation gain. Starts 06:00, cut-off 10:00 (four hours).
• 5K: actual published route 5.04 km, approximately 187 m elevation gain. Starts 06:30, cut-off 08:30 (two hours).

Important: ARC's distance selector has no 35K option, so this category and its exact 34.62 km distance are recorded here rather than misrepresented as a 30K race. The organiser advises that route details may change if conditions require. Check the final course and mandatory equipment instructions before travel.

Trail points and environmental requirements

The organiser advertises 2 ITRA points and a 50K UTMB Index classification for HYT50, and 1 ITRA point plus a 20K UTMB Index classification for HYT35. Runners in every distance must carry their own reusable cup or refillable bottle to reduce single-use plastic waste. Free downloadable race photographs are promised. Confirm any further required kit, hydration rules and checkpoint instructions directly with the organiser.

Race-pack collection and access

Collect race materials Saturday 19 December, 10:00–17:00, at the event venue. The arboretum charges a separate site-access fee, advertised as THB 20 per Thai adult or THB 100 per foreign adult, with exemptions and vehicle charges; these are venue entry charges, not race entry fees. The organiser has published camping reservation options at the arboretum and a nearby health centre approximately 1 km away; a race-day shuttle is mentioned for the latter. Pre-book camping directly through the organiser's channels. Allow extra time for travel on rural roads and early race starts.

Registration and accuracy: The organiser directs entries to its current-edition RunRace page. Race fees and slot availability should be confirmed at checkout. No substantiated final online closing deadline has been identified, so none is asserted. Venue map coordinates are an approximate arboretum reference, not a surveyed start-line pin.

Official current-edition sources: Organiser announcements and participant updates, official registration.

Current entry prices, checked 3 November 2026: the organiser-linked RunRace page lists regular fees of THB690 for 5K, THB890 for15K, THB1,990 for35K and THB2,290 for50K, with a separate5K family option at THB790. Earlier early-bird prices are historical. The organiser’s course panels posted on3November reaffirm the20December race day and starts listed above;19December is collection day. Confirm remaining places at checkout.