Desert RATS Trail Running Festival - 50K 2027
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 6 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.
Predicted race time based on your UTMB Index® · smoothed times achieved by runners at your level in past editions
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Cut-off times and crew - Desert RATS Trail Running Festival - 50K · 2027
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 | Rustler's 1km 9.9 | Rustler's 2km 15.6 | Pizza Overlookkm 22.2 | Crossroadskm 28.5 | Troybuiltkm 39.0 | Finishkm 49.4 |
|---|---|---|---|---|---|---|
| Water | available | available | available | available | available | available |
| Brand products · Näak | available | available | available | available | available | available |
La feuille de ton assistance pour Desert RATS Trail Running Festival - 50K · 2027
Ton assistance peut te voir à ces postes. Ton plan RAVIT y met tes heures, ce qu'elle te tend et la route pour y aller.
Recto, verso et planche d'étiquettes, en PDF : l'exemple d'une coureuse de l'UTMB.
Elevation profile
The course and its aid stations
Desert RATS Trail Running Festival - 50K: 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 6h29 to 3h54. These times include aid-station stops: they come from real durations between two timing points, and this race's timing does not measure stops separately.
Source| UTMB® Index | Estimated time | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|
| 500 | 6h29 | — | 389 g | 4.5 L | 3,242 mg | +3h31 |
| 550 | 5h53 | — | 353 g | 4.1 L | 2,942 mg | +4h07 |
| 600 | 5h13 | — | 313 g | 3.7 L | 2,608 mg | +4h47 |
| 650 | 4h55 | — | 295 g | 3.4 L | 2,458 mg | +5h05 |
| 700 | 4h23 | — | 263 g | 3.1 L | 2,192 mg | +5h37 |
| 750 | 4h06 | — | 246 g | 2.9 L | 2,050 mg | +5h54 |
| 800 | 3h54 | — | 234 g | 2.7 L | 1,950 mg | +6h06 |
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.
Measured on the 2026 edition: the field checkpoint by checkpoint
446 starters, 5.8% DNF rate, 6 timed checkpoints.
| Segment | km | Median | Middle half | Measured | Median passage | Still ranked |
|---|---|---|---|---|---|---|
| Start → Rustler's 1 | 9.9 | 1 h 15 | 1 h 06 – 1 h 24 | 442 | 1 h 15 | 443 |
| Rustler's 1 → Rustler's 2 | 15.6 | 41 min | 36 min – 48 min | 439 | 1 h 57 | 441 |
| Rustler's 2 → Pizza Overlook | 22.2 | 51 min | 44 min – 1 h 00 | 437 | 2 h 48 | 439 |
| Pizza Overlook → Crossroads | 28.5 | 48 min | 42 min – 58 min | 426 | 3 h 36 | 427 |
| Crossroads → Troybuilt | 39 | 1 h 42 | 1 h 29 – 1 h 54 | 423 | 5 h 19 | 424 |
| Troybuilt → Finish | 49.4 | 1 h 33 | 1 h 23 – 1 h 46 | 422 | 6 h 52 | 422 |
“Median passage” is elapsed time from the start, not a clock time: the clock time depends on the edition.
Where runners drop out. Pizza Overlook (12) · Start (3) · Crossroads (3) out of 26 total DNFs.
RAVIT record from the official timing of the 2026 edition, data from September 17, 2026.
SourceOther trails worth preparing for
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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 — Desert RATS Trail Running Festival - 50K
Weather for Desert RATS Trail Running Festival - 50K
The weather for Desert RATS Trail Running Festival - 50K 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 Desert RATS Trail Running Festival - 50K, hour by hour on the courseFrequently asked questions
How many checkpoints?
Desert RATS Trail Running Festival - 50K has 6 checkpoints: 6 aid stations. Details are in the two tables above.
What's the longest segment without aid?
The one leading to Troybuilt: 10.5 km and 0 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?
Desert RATS Trail Running Festival - 50K is 49 km long with 940 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 5h13 for Desert RATS Trail Running Festival - 50K.
What's the weather forecast?
The weather for Desert RATS Trail Running Festival - 50K 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 Desert RATS Trail Running Festival - 50K?
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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