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The PSY 50K is a solo mountain trail race of about 51 kilometres through the hills around Lom Kao in Phetchabun province, northern Thailand. The route climbs and descends roughly 2,900 metres in total, so runners face sustained gradient in both directions across the day. Starts are at 03:30, which means the first hours are run in darkness by headlamp before the sun rises over the ridges. The ground underfoot is not described in detail on the listing, but the scale of the climbing points to long, steep mountain paths. Four aid stations divide the course into more manageable sections, and runners have 14 hours and 30 minutes to reach the finish.
Start at 03:30, so the early hours are run by headlamp
About 2,900 m of climbing and 2,900 m of descent over 51 km
Four aid stations along the course
ITRA-ranked mountain event
What to bring
Race bib (BIB number) worn in a prominent, clearly visible place throughout the race
On the day
Before you enter
Other questions
The PSY 50K is a solo event, so each runner competes individually.
The race appears on the ITRA race calendar, which means it is part of the ITRA ranking system. Check the ITRA race page for the points and levels assigned to this edition.
With around 2,900 metres of climbing and the same amount of descent, training should include long sessions with substantial vertical gain and downhill running to strengthen the legs. Practise fuelling and hydration over several hours so you are comfortable with your plan on race day.
Entry fee not listed
Check the race's registration page for pricing.Lom Kao, Thailand
Sunday, November 8, 2026
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