
Cool Moon 100k 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 24 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 - Cool Moon 100k · 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 | The Ranch Akm 7.1 | Damkm 14.0 | Knickerbocker Akm 16.0 | The Ranch Bkm 19.6 | Cool Bkm 21.4 | Knickerbocker Bkm 25.4 | Pilot Hillkm 30.3 | Catecroftkm 32.9 | Knickerbocker Ckm 36.8 | Cool A 2km 40.2 | The Ranch A 2km 47.3 | Dam 2km 54.2 | Knickerbocker A 2km 56.2 | The Ranch B 2km 59.8 | Cool B 2km 61.6 | Knickerbocker B 2km 65.6 | Pilot Hill 2km 70.6 | Catecroft 2km 73.1 | Knickerbocker C 2km 77.1 | Cool A 3km 80.5 | The Ranch A 3km 87.6 | Dam 3km 94.5 | Knickerbocker A 3km 96.4 | The Ranch B3km 100.0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available |
| Brand products | available | unavailable | available | available | available | available | unavailable | available | available | available | available | unavailable | available | available | available | available | unavailable | available | available | available | available | unavailable | available | available |
La feuille de ton assistance pour Cool Moon 100k · 2027
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
Cool Moon 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 15h13 to 9h05, and the aid-station stop budget from 0h51 to 0h17. 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 | 15h13 | 0h51 | 2 | 913 g | 10.7 L | 7,609 mg | +21h47 |
| 550 | 13h53 | 0h42 | 2 | 833 g | 9.7 L | 6,944 mg | +23h07 |
| 600 | 12h26 | 0h34 | 2 | 746 g | 8.7 L | 6,218 mg | +24h34 |
| 650 | 11h27 | 0h28 | 2 | 687 g | 8 L | 5,728 mg | +25h33 |
| 700 | 10h35 | 0h24 | 2 | 635 g | 7.4 L | 5,292 mg | +26h25 |
| 750 | 9h45 | 0h20 | 2 | 585 g | 6.8 L | 4,874 mg | +27h15 |
| 800 | 9h05 | 0h17 | 2 | 545 g | 6.4 L | 4,544 mg | +27h55 |
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.
In the 2027 ranking
Cool Moon 100k is 102 km and 2,643 m of elevation gain, that's 128 km-effort: category L, among 87 races in 2027. Its time limit of 37 h requires a minimum speed of 2.8 km/h: rank 2 out of 83 of the widest cut-off times in L.
L ultra-trails 2027: 115 to 154 km-effort
Similar effort in 2027
- Gorge waterfalls 100k · 128 km-effort
- Leona Divide 100k · 129 km-effort
- La Sportiva Lavaredo Ultra Trail - Lavaredo 80K · 127 km-effort
Other trails worth preparing for
- Pinhoti 100162 km · 3,750 m D+ · October 31, 2026
- Javelina Jundred 100 miler158 km · 1,688 m D+ · October 31, 2026
- Javelina 100k97 km · 1,053 m D+ · October 31, 2026
- Mamba 100161 km · 143 m D+ · November 6, 2026
- Tunnel Hill 5081 km · 182 m D+ · November 7, 2026
- Tunnel Hill 100161 km · 355 m D+ · November 7, 2026
- Mountain Masochist 100k101 km · 3,268 m D+ · November 7, 2026
- Rio Del Lago161 km · 2,697 m D+ · November 7, 2026
- Mountain Masochist 5081 km · 2,311 m D+ · November 7, 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 — Cool Moon 100k
Weather for Cool Moon 100k
The weather for Cool Moon 100k 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 Cool Moon 100k, hour by hour on the courseFrequently asked questions
How many checkpoints?
Cool Moon 100k has 25 checkpoints: 19 aid stations, 5 water points, and 1 checkpoint with undocumented contents. Details are in the two tables above.
What's the longest segment without aid?
The one leading to The Ranch A 2: 7.1 km and 233 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?
Cool Moon 100k is 102 km long with 2643 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 12h26 for Cool Moon 100k.
What's the weather forecast?
The weather for Cool Moon 100k 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 Cool Moon 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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