Koh Chang Trail

Race completed

55 km Distance

not publishedn/a Climbing

2.8 est Grit · Entry level

Calculated from 55 km alone — the organiser has not published an elevation profile. Read 2.8 as a floor, not a verdict.

12.0546° N, 102.3373° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 15 hours 16:22 min/km average. Generous. Walkable throughout for most of the field. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. More forgiving than 84% of 50K races. Measured against 1034 races of the same distance. Cut-off calculator →

Field size ~56 Small. Long stretches with nobody in sight.

DUV results for the 2025 edition (55km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, September

Daytime high 28°C

Night low 26°C

Rainfall Wet — expect rain

Daylight 12 h 05 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 76 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2025	55km	56	Paul Dunn · 07:23:34	Monchanok Sripha · 12:03:11
2024	55km	30	Paul Dunn · 07:16:38	Phattharaphon Noimor · 09:29:05

The field grew 87% between 2024 (30) and 2025 (56). 13% of the 2025 field were women.

DUV results for the 2025 edition (55km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

The Aid Station

Course-specific beta from the community

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for 55 km of trail.

Trail Running Shoes 55 km of trail — cushioning that is still there in the last quarter.
Race Nutrition 55 km of self-supported fuelling between aid stations.
Hydration Vests Flask capacity for 55 km, without the bounce.
Headlamps A 15 h limit puts you out there after dark.
GPS Watches Battery life first — a 55 km day outlasts most full-GPS modes.

La Sportiva

Prodigio Pro

RunRepeat found the La Sportiva Prodigio Pro to have a secure, locked-in fit due to its premium upper, and also praised the shoe's energetic ride, particularly…

$225 ★★★★★ 4.6

Brooks

Catamount 3

RunRepeat found the Brooks Catamount 3 to have a cozier upper that enhances the overall fit, though breathability and durability could be better. iRunFar noted…

★★★★★ 4.5

Skratch Labs