Tunnel Hill 50 2026
Forecast published: 38°F feels-like at the coldest, 55°F at the warmest, with rain expected.
Here you'll find the elevation profile, an estimated finish time based on your UTMB Index and details of the 11 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 - Tunnel Hill 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 | Heron Pond Lakekm 8.5 | Karnakkm 17.1 | Wetland Center - Turnkm 21.4 | Karnakkm 25.6 | Heron Pond Lakekm 34.2 | Vienna Parkkm 42.6 | Shelby Roadkm 47.1 | Tunnel Hillkm 58.1 | Northern Turn Aroundkm 61.6 | Tunnel Hillkm 65.1 | Shelby Roadkm 76.1 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Water | available | available | available | available | available | available | available | available | available | available | available |
| Brand products | available | available | available | available | available | available | available | available | available | available | available |
Elevation profile
The course and its aid stations
Tunnel Hill 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 9h15 to 5h41, and the aid-station stop budget from 0h20 to 0h07. 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 | 9h15 | 0h20 | — | 555 g | 6.5 L | 4,628 mg | +18h45 |
| 550 | 8h28 | 0h16 | — | 508 g | 5.9 L | 4,232 mg | +19h32 |
| 600 | 7h43 | 0h13 | — | 463 g | 5.4 L | 3,859 mg | +20h17 |
| 650 | 7h10 | 0h11 | — | 430 g | 5 L | 3,584 mg | +20h50 |
| 700 | 6h35 | 0h09 | — | 395 g | 4.6 L | 3,293 mg | +21h25 |
| 750 | 6h05 | 0h08 | — | 365 g | 4.3 L | 3,044 mg | +21h55 |
| 800 | 5h41 | 0h07 | — | 341 g | 4 L | 2,845 mg | +22h19 |
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
- Mountain Masochist 100k101 km · 3,268 m D+ · November 7, 2026
- Mountain Masochist 5081 km · 2,311 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 — Tunnel Hill 50
Weather for Tunnel Hill 50
Section-by-section forecasts for Tunnel Hill 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 09:00 AM: Showers, 52°F. Coldest: 38°F feels-like at Tunnel Hill (Sat, 11/07 03:13 PM); warmest: 55°F at Vienna Park (Sat, 11/07 04:43 PM). Rain expected at Start, Heron Pond Lake, up to 0.1 mm on one segment.
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?
Tunnel Hill 50 has 14 checkpoints: 11 aid stations and 3 checkpoints with undocumented contents. Details are in the two tables above.
What's the longest segment without aid?
The one leading to Tunnel Hill: 11.0 km and 85 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?
Tunnel Hill 50 is 81 km long with 182 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 7h43 for Tunnel Hill 50.
What's the weather forecast?
Forecast published: 38°F feels-like at the coldest, 55°F at the warmest, with rain expected. RAVIT publishes the weather for Tunnel Hill 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 Tunnel Hill 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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