PYT100 2026
The forecast arrives five days before the start.
Here you'll find the elevation profile, an estimated finish time based on your UTMB Index and details of the 9 aid stations to plan your nutrition and hydration segment by segment.
What's your time based on your UTMB?
Times estimated by the RAVIT model, learned from real ultra-trail finish times. Enter your UTMB Index (utmb.world) to get a personalized estimate.
Cut-off times and crew - PYT100 · 2026
Data from the official race rules, checked for every edition. The race rules prevail. Positions are interpolated along the GPX track and are a guide, not official course marking.
What you'll find at each aid station
| Product | W1 แม่จะkm 7.5 | A1 วัดปงไคร้km 17.8 | A2 ม่อนล่องkm 29.2 | A3 ป่าม่วงkm 42.3 | A4 แม่สาใหม่km 55.5 | A5 ต้นสนkm 63.4 | A6 ลานกางเต็นท์ดอยปุยkm 74.2 | A7 ป่าไม้ผานกกกkm 85.5 | W2 กองแหะkm 91.2 |
|---|---|---|---|---|---|---|---|---|---|
| Water | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ |
| Brand products | unavailable | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | unavailable |
Elevation profile
The course and its aid stations
Other trails worth preparing for
- Chiang Mai Thailand - ELEPHANT 100101 km · 5,448 m D+ · December 4, 2026
- Chiang Mai Thailand - HMONG 50-DAY63 km · 2,915 m D+ · December 5, 2026
- Chiang Mai Thailand - HMONG 50-NIGHT63 km · 2,915 m D+ · December 5, 2026
- Amazean Jungle Thailand - BETONG 100M115 km · 5,599 m D+ · April 30, 2027
- Amazean Jungle Thailand - TUNNEL 100K91 km · 4,825 m D+ · May 1, 2027
Sources and method
- Time projection — times by index rest on a Riegel formula adjusted for elevation, calibrated on the previous edition's official results. Peter Riegel (Wikipedia)
- Trail nutrition — hourly targets for carbohydrate, fluid and sodium follow the commonly accepted ultra-endurance guidance. La Clinique du Coureur — Fuelling in trail running
- Course, aid stations and cut-offs — taken from the event's official rules, which prevail in case of any discrepancy. Official site — PYT100
Weather for PYT100
Section-by-section forecasts for PYT100, calculated at the estimated passing time: feels-like temperature, rain or snow, wind and thunderstorms. Three models — AROME (Météo-France), ICON (DWD) and ECMWF IFS — served from the finest to the farthest-reaching.
Forecast, not guaranteed: in the mountains a model describes a grid of several hundred meters, not the slope you're on.
Données météo : Météo-France (AROME), DWD (ICON), ECMWF (IFS) — CC BY 4.0, via Open-Meteo
Frequently asked questions
How many checkpoints?
PYT100 has 10 checkpoints: 7 aid stations, 2 water points, and 1 checkpoint with undocumented contents. Details are in the two tables above.
What's the longest segment without aid?
The one leading to A4 แม่สาใหม่: 13.2 km and 832 m elevation gain. That's the one to load up for first.
How do I find the exact location of an aid station?
The Google Maps icon in the “Access” column opens the aid station's location: handy for planning your crew's routes.
What distance and elevation gain?
PYT100 is 97 km long with 4145 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 13h50 for PYT100.
What's the weather forecast?
RAVIT publishes the weather for PYT100 section by section: feels-like temperature, rain or snow, wind and storms, at the estimated passage time. Forecasts come from AROME (Météo-France), ICON (DWD) and ECMWF IFS, refreshed several times a day.
Want to stack the odds in your favor for PYT100?
In 2 minutes, RAVIT generates your complete plan: segment-by-segment time, carbs, water and sodium at every aid station, printable roadbook.
No card required · Instant results