CDR 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 5 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 - CDR · 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 | Leg 1 Downtown-14.5 kmkm 14.7 | Leg 2- 27.4 km- Flood and Grande Mtnkm 45.9 | Leg 3: Old Mine Road - 20.5kmkm 66.9 | Leg 4: Hamell Assault- 35.2 kmkm 99.0 | Leg 5: The River Crossing- 18.5 kmkm 118.3 |
|---|---|---|---|---|---|
| Water | available | available | available | available | available |
| Brand products | available | available | available | available | available |
La feuille de ton assistance pour CDR · 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
Other trails worth preparing for
- Ultra Trail Whistler - 100K104 km · 5,506 m D+ · June 26, 2027
- Sinister 7158 km · 5,597 m D+ · July 10, 2027
- Squamish 50 Mile79 km · 2,599 m D+ · August 14, 2027
- Ultra Trail Harricana 125km122 km · 4,001 m D+ · September 3, 2027
- Bromont - BU160160 km · 6,430 m D+ · October 17, 2026
- Bromont - BU8080 km · 3,150 m D+ · October 17, 2026
- trifecta135 km · 3,371 m D+ · September 26, 2026
- Gaspé - 100 Miles111 km · 3,544 m D+ · September 18, 2026
- Gaspé - 165km164 km · 6,120 m D+ · September 18, 2026
Sources and method
- Time projection — for lack of results on this race, times by UTMB Index rely on a Riegel law whose exponent is adjusted to elevation gain — the model's fallback, not its usual method. Peter Riegel (Wikipedia)
- 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 — CDR
Weather for CDR
The weather for CDR 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 CDR, hour by hour on the courseFrequently asked questions
How many checkpoints?
CDR has 6 checkpoints: 5 aid stations and 1 checkpoint with undocumented contents. Details are in the two tables above.
What's the longest segment without aid?
The one leading to Leg 4: Hamell Assault- 35.2 km: 32.2 km and 1,322 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?
CDR is 118 km long with 4327 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 17h20 for CDR.
What's the weather forecast?
The weather for CDR 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 CDR?
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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