MY50 2026
The forecast arrives five days before the start.
Here you'll find the elevation profile and an estimated finish time based on your UTMB Index.
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 - MY50 · 2026
| Aid station | Cum. km | Cum. D+ | Seg. km | Seg. D+ | Seg. D- | Crew | Cut-off | Access |
|---|---|---|---|---|---|---|---|---|
| Tiger Temple | 9.7 | 0 m | 9.7 | 365 m | 351 m | — | — | — |
| KTM Tunnel | 21.0 | 0 m | 11.3 | 461 m | 461 m | — | — | — |
| Changkat Ibol | 33.5 | 0 m | 12.5 | 159 m | 154 m | — | Sat 03:00 PM | — |
| U-turn Kuning Sari | 37.7 | 0 m | 4.3 | 240 m | 237 m | — | — | — |
| Peak 300 | 42.7 | 0 m | 5.0 | 302 m | 155 m | — | — | — |
| Finish | 55.1 | 0 m | 12.5 | 391 m | 550 m | — | Sat 10:00 PM | — |
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
Aid station contents not documented.
La feuille de ton assistance pour MY50 · 2026
Les règles d'assistance de cette course ne sont pas encore connues : tu marqueras tes rendez-vous toi-même.
Recto, verso et planche d'étiquettes, en PDF : l'exemple d'une coureuse de l'UTMB.
Elevation profile
The course and its aid stations
MY50: times, aid-station stops and fuelling needs by UTMB® Index
Between a UTMB® Index of 500 and 800, the estimated finish time on this race runs from 8h17 to 4h58, and the aid-station stop budget from 0h14 to 0h05. The longer the race, the more stops weigh: this is time you should plan to spend standing still, not only running.
Source
| UTMB® Index | Estimated time | Of which stops | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|---|
| 500 | 8h17 | 0h14 | 2 | 497 g | 5.8 L | 4,141 mg | +8h43 |
| 550 | 7h34 | 0h12 | 2 | 454 g | 5.3 L | 3,784 mg | +9h26 |
| 600 | 6h49 | 0h10 | 2 | 409 g | 4.8 L | 3,407 mg | +10h11 |
| 650 | 6h17 | 0h08 | 2 | 377 g | 4.4 L | 3,143 mg | +10h43 |
| 700 | 5h46 | 0h07 | 2 | 346 g | 4 L | 2,883 mg | +11h14 |
| 750 | 5h21 | 0h06 | 2 | 321 g | 3.7 L | 2,673 mg | +11h39 |
| 800 | 4h58 | 0h05 | 2 | 298 g | 3.5 L | 2,485 mg | +12h02 |
Figures based on 60 g of carbohydrate, 700 mL of fluid and 500 mg of sodium per hour, "average" preparation and mild conditions (15–25 °C). Above 25 °C, count on roughly 900 mL/h and 700 mg/h. Carbohydrate intake is trained: 60 g/h is a floor, 90 g/h assumes a glucose-fructose blend and a gut used to it.
Sources and method
- Time projection — times by UTMB Index are taken from the actual splits of runners in each level band on previous editions of this race, aid station stops included. No formula is used as long as these results exist.
- 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 — MY50
Weather for MY50
The weather for MY50 will appear here as soon as the forecast models reach that date, around five days before the start: feels-like temperature, rain, snow, wind and storms, section by section and at your passage time.
Detailed weather for MY50, hour by hour on the courseFrequently asked questions
How many checkpoints?
MY50 has 6 checkpoints: 6 checkpoints with undocumented contents. Details are in the two tables above.
What distance and elevation gain?
MY50 is 55 km long with 1932 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 6h49 for MY50.
What's the weather forecast?
The weather for MY50 will be published on this page around five days before the start, once the forecast models reach the race date. It will be detailed section by section: feels-like temperature, rain, snow, wind and storms.
Want to stack the odds in your favor for MY50?
In 2 minutes, RAVIT generates your complete plan: segment-by-segment time, carbs, water and sodium at every aid station, printable roadbook.
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