About
Trail Masters Series Rayong - 45K is a 43.6 km ultra race with 1,989m elevation gain in Thailand. Rated challenging difficulty. Located near Ban Chang, Rayong.
Organized byTrail Masters Series
Difficulty
Challenging64 KE
KM-Effort = distance (km) +elevation gain (m)100
Based on the ITRA standard.
Elevation Density46 m/km · Moderate
Elevation Density =elevation gain (m)distance (km)
Time limit:13h
Run Conditions
Weather in Jul
Temperature
26 – 30°C
Warm
Humidity
Very high
Rainfall
174 mm
Wet season
Sunshine
7.9h/day
~23 rainy days expected
Registration
Website
Deadline
Registration may already be closed — check with organizers
Entry fee
Early Bird – 2,500 THB(~$76)until May 31, 2026
Regular – 3,200 THB(~$97)until Jun 15, 2026
Travel & Logistics
VenueSt. Andrews Green Valley, Rayong
Google MapsNot found — check the website for more details
Nearest airports
UTP - U-Tapao-Rayong-Pattaya International Airport24 km | ~41min driving time
BKK - Suvarnabhumi Airport165 km | ~2h45 driving time
Race Day Info
GPX File
Not available — check the website for more details
BiB Collection
["25-28 Jun: Supersports Central Chidlom 3rd floor, 11:00-20:00","11 Jul: Race venue St. Andrews Green Valley Rayong, 10:00-18:00","12 Jul: Race venue from 04:30"]
Mandatory Gear
- Hydration vest/belt/bottle
- Water (min 1.0L)
- Race BIB
- Water cup
- First aid kit
- Headlamp
Other Distances
Community
Reviews
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Race data is actively being refined. If something looks off, .
Sources: manual, website · Enriched 2026-06-02