Mountain Masochist 50 2026
Forecast published: 36°F feels-like at the coldest, 60°F at the warmest, no notable rain.
Here you'll find the elevation profile, an estimated finish time based on your UTMB Index and details of the 13 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 - Mountain Masochist 50 · 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 | Forest Gate (WATER DROP ONLY!!!!)km 2.8 | Salt Log Gap Aid Stationkm 14.3 | The Loop Aid Stationkm 19.0 | Cabin Aid Stationkm 25.4 | Long MTkm 33.3 | Reservoir Aidkm 37.6 | Long Mtkm 41.9 | Cabin Aid Stationkm 49.7 | The Loop Aid Stationkm 52.7 | The Loop Aid Stationkm 61.8 | Salt Log Gap Aid Stationkm 66.5 | Forest Gate (WATER DROP ONLY!!!!)km 78.0 | Finish Linekm 80.8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water | available | available | available | available | available | available | available | available | available | available | available | available | available |
| Brand products | unavailable | available | available | available | available | available | available | available | available | available | available | unavailable | available |
Elevation profile
The course and its aid stations
Mountain Masochist 50: 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 11h48 to 7h16, and the aid-station stop budget from 0h40 to 0h14. 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 |
|---|---|---|---|---|---|---|
| 500 | 11h48 | 0h40 | 1.5 | 708 g | 8.3 L | 5,900 mg |
| 550 | 10h51 | 0h33 | 1.5 | 651 g | 7.6 L | 5,428 mg |
| 600 | 9h50 | 0h27 | 1.5 | 590 g | 6.9 L | 4,920 mg |
| 650 | 9h07 | 0h22 | 1.5 | 547 g | 6.4 L | 4,560 mg |
| 700 | 8h26 | 0h19 | 1.5 | 506 g | 5.9 L | 4,217 mg |
| 750 | 7h49 | 0h16 | 1.5 | 469 g | 5.5 L | 3,904 mg |
| 800 | 7h16 | 0h14 | 1.5 | 436 g | 5.1 L | 3,636 mg |
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.
Other trails worth preparing for
- Javelina 100k97 km · 1,053 m D+ · October 31, 2026
- Coldwater 50k52 km · 1,293 m D+ · November 1, 2026
- Tunnel Hill 5081 km · 182 m D+ · November 7, 2026
- Mountain Masochist 100k101 km · 3,268 m D+ · November 7, 2026
- Lake Chabot 50K49 km · 1,896 m D+ · November 7, 2026
- Deception Pass 50k50 km · 1,394 m D+ · November 7, 2026
- Red Rock Canyon 50k49 km · 988 m D+ · November 14, 2026
- Looking Glass 100K98 km · 3,190 m D+ · November 14, 2026
- HOKA Pacific Trails California by UTMB - 50K®52 km · 1,548 m D+ · November 14, 2026
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 — Mountain Masochist 50
Weather for Mountain Masochist 50
Section-by-section forecasts for Mountain Masochist 50, 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.
Forecasts for a 600 UTMB Index runner, at their estimated passage time. Start Sat, 11/07 05:30 AM: Hazy sky, 43°F. Coldest: 36°F feels-like at The Loop Aid Station (Sat, 11/07 07:49 AM); warmest: 60°F at Reservoir Aid (Sat, 11/07 10:04 AM). No notable rain forecast on the course. Gusts up to 30 mph at Start.
Forecast, not guaranteed: in the mountains a model describes a grid of several hundred meters, not the slope you're on.
Weather data: Météo-France (AROME), DWD (ICON), ECMWF (IFS) — CC BY 4.0, via Open-Meteo
Frequently asked questions
How many checkpoints?
Mountain Masochist 50 has 13 checkpoints: 11 aid stations and 2 water points. Details are in the two tables above.
What's the longest segment without aid?
The one leading to Salt Log Gap Aid Station: 11.5 km and 318 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?
Mountain Masochist 50 is 81 km long with 2311 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 9h50 for Mountain Masochist 50.
What's the weather forecast?
Forecast published: 36°F feels-like at the coldest, 60°F at the warmest, no notable rain. RAVIT publishes the weather for Mountain Masochist 50 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 Mountain Masochist 50?
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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