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🇹🇭Thailand·Ratchaburi

Tanaosri Trail - 26K

Status UnknownUTMB IndexITRA
Sun, Dec 20, 2026Date
26.0 kmDistance
+1,590mElevation
Ratchaburi, ThailandLocation
42 KEKM-Effort
04:00Start Time

About

Traverses the rugged Tenasserim Range along the Thai-Myanmar border through dense tropical forest, river crossings and mountain ridges. Suan Phueng hot springs and nearby Erawan Falls make ideal post-race excursions.

Organized byTanaosri Trail

Difficulty

ITRA 1 pointUTMB World 20K
Moderate42 KE
KM-Effort = distance (km) +elevation gain (m)100

Based on the ITRA standard.

Elevation Density61 m/km · Very Hard
Elevation Density =elevation gain (m)distance (km)
Time limit:10h

Run Conditions

MountainForest
Weather in Dec

Temperature

21 – 29°C

Warm

Humidity

High

Rainfall

15 mm

Dry season

Sunshine

10.5h/day

~4 rainy days expected

Registration

Website
www.tanaosritrail.com/
Register
Coming soon
Deadline
Not specified
Entry fee
Coming soon

Travel & Logistics

VenueNatural Science Park, Suan Phueng District, Ratchaburi
Google MapsNot found — check the website for more details
No airport within 200 km

Race Day Info

GPX File

Not yet released, check again closer to race date

BiB Collection

Not available yet, check again closer to race date

Mandatory Gear

  • Headlamp + Battery (min 200 lumen)
  • Water 1.5L
  • Mobile Phone with Offline Map
  • Emergency Blanket
  • Whistle
  • First-Aid Kit
  • Food (min 200 kcal)
  • Reusable bowl and spoon

Other Distances

Tanaosri Trail - 11K

11.0 km+430mDec 20

Tanaosri Trail - 50K

51.0 km+2,740mDec 19
UTMBITRA

Tanaosri Trail - 100K

104 km+5,510mDec 19
UTMBITRA

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Race data is actively being refined. If something looks off, .

Sources: website · Enriched 2026-05-28