Wild Duluth 100k 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 14 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 - Wild Duluth 100k · 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 | N 24th ASkm 5.0 | Highland Gkm 13.7 | Spirit Mtnkm 22.2 | Magney Snikm 25.3 | Munger Trakm 31.7 | Grand Portkm 40.1 | Oldenburgkm 48.4 | Grand Portkm 56.6 | Munger Trakm 65.1 | Magney Snikm 71.5 | Spirit Mtnkm 74.6 | Highland Gkm 83.0 | N 24th ASkm 91.8 | FINISHkm 96.7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ |
| Brand products | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ |
Elevation profile
The course and its aid stations
Wild Duluth 100k: 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 15h26 to 9h39, and the aid-station stop budget from 0h52 to 0h18. The longer the race, the more stops weigh: this is time you should plan to spend standing still, not only running.
Below a UTMB® Index of roughly 415, the overall cut-off of 18h00 is no longer reachable at the estimated pace.
| UTMB® Index | Estimated time | Of which stops | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|---|
| 500 | 15h26 | 0h52 | 2 | 926 g | 10.8 L | 7,718 mg | +2h34 |
| 550 | 14h20 | 0h43 | 2 | 860 g | 10 L | 7,169 mg | +3h40 |
| 600 | 12h50 | 0h35 | 2 | 770 g | 9 L | 6,413 mg | +5h10 |
| 650 | 11h54 | 0h29 | 2 | 714 g | 8.3 L | 5,951 mg | +6h06 |
| 700 | 11h01 | 0h25 | 2 | 661 g | 7.7 L | 5,506 mg | +6h59 |
| 750 | 10h21 | 0h21 | 2 | 621 g | 7.2 L | 5,178 mg | +7h39 |
| 800 | 9h39 | 0h18 | 2 | 579 g | 6.8 L | 4,826 mg | +8h21 |
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
- Ghost Train119 km · 626 m D+ · October 17, 2026
- Rogue Gorge 5081 km · 862 m D+ · October 17, 2026
- Man against horse77 km · 1,910 m D+ · October 17, 2026
- Horseshoe Bend 50 Mile81 km · 1,108 m D+ · October 17, 2026
- Lake Sonoma 5081 km · 2,922 m D+ · October 17, 2026
- Pocatello Round114 km · 5,412 m D+ · October 17, 2026
- Firewater 100K97 km · 1,314 m D+ · October 24, 2026
- Island View 100154 km · 6,966 m D+ · October 24, 2026
- Tunnel Hill 5081 km · 182 m D+ · November 7, 2026
Sources and method
- Time projection — les temps par cote sont repris des passages réels des coureurs de chaque tranche sur les éditions précédentes de cette course, arrêts aux ravitaillements compris. Aucune formule n'intervient tant que ces résultats existent.
- 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 — Wild Duluth 100k
Weather for Wild Duluth 100k
Section-by-section forecasts for Wild Duluth 100k, 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?
Wild Duluth 100k has 14 checkpoints: 14 aid stations. Details are in the two tables above.
What's the longest segment without aid?
The one leading to Highland G: 8.7 km and 303 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?
Wild Duluth 100k is 97 km long with 3157 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 12h50 for Wild Duluth 100k.
What's the weather forecast?
RAVIT publishes the weather for Wild Duluth 100k 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 Wild Duluth 100k?
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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