Trail Master Series - 41K is a 41.4 km full marathon category race with 1,643m elevation gain in Thailand. Terrain: mountain, forest. Rated challenging difficulty. Located near Wangchan, Rayong.
Based on the ITRA standard.
Temperature
23 – 30°C
Warm
Humidity
Extreme
Rainfall
296 mm
Monsoon
Sunshine
8.2h/day
~24 rainy days expected
GPX File
Not yet released, check again closer to race date
BiB Collection
1-4 Oct 2026, 11:00-20:30 at Supersport Central Chidlom 3rd Floor; Sat 24 Oct 2026, 10:00-18:00 at Wangchan Valley Rayong; Sun 25 Oct 2026 from 05:00 at race venue
Mandatory Gear
Race Results
We'll add the results link here once it's available, typically on race day or the day after
Race Pictures
We'll add the pictures download link here once it's available, typically 1–2 days after the race
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Sources: website · Enriched 2026-10-05