Nakhonsawan Speed Trail 2026

Nakhonsawan Speed Trail 2026 brings runners to the wooded terrain around Khao Rang Chanthararam Forest Monastery in Nong Pling, Nakhon Sawan, on Sunday 22 November 2026. Organised by Khon Mueang Prabang Running Club, the event offers a longer 40 km trail challenge as well as 25 km, 11 km and 5 km options. All four distances are advertised on the current-edition organiser registration page and official artwork.

Course and race-day experience

The event is classified by the registration platform as trail and cross-country running, rather than a road marathon. Entrants should be prepared for off-road footing, carry suitable footwear and consult the organiser's published course maps for their chosen distance. Maps are available on the registration page for the 40 km, 25 km and 11 km races. Elevation gain, aid-station spacing, mandatory gear and cut-off times have not been reliably confirmed on the available official information, so runners should verify these directly rather than assume road-race conditions.

Start schedule

Sunday check-in begins at 04:00. Flag-offs are 05:00 for 40 km, 05:30 for 25 km, 06:00 for 11 km and 06:15 for 5 km, all local Thailand time (UTC+7). The earliest starters should plan transport to the monastery well before dawn.

Bib collection and rules

Race-pack collection is scheduled for Saturday 21 November, 10:00–18:00, at the same monastery venue. Runners collecting their own pack should bring a registration tracking number or confirmation barcode and a passport or government ID. A representative may collect on a runner's behalf with the required confirmation and identity documents set out by Runlah.

The organiser advertises men's and women's age-group trophies, with requirements to report promptly after finishing and present identification when claiming awards. Course rules require visible bibs, passage through the designated checkpoints and adherence to race marshals' instructions. Applicants younger than 12 need parental consent.

Regular-price entries shown by the organiser are THB 2,000 (40 km), 1,600 (25 km), 1,000 (11 km) and 600 (5 km). The 40 km, 25 km and 11 km races advertise a finisher shirt for those who complete their distance. Registration availability can change and should be checked on the official Runlah page.

Structured-category note: ARC currently has no exact 40 km distance option; the authentic 40 km event is documented here, and the other three distances are selectable in structured filters.