Courmayeur, IT · August 2026
CCC by UTMB
CCC by UTMB: 95.38 km, 5493 m of climbing. Course route, elevation, weather and a personalised pacing plan.
- Distance
- 95.38 km
- Elevation gain
- 5493 m
- Typical temp
- 12–25 °C
- Cutoff
- 26:30:00
The short version
A brutal course
- ▸Big climbing day — 5493 m up. Pace the ascents on effort, not the clock.
- ▸Quad-pounding descent (5668 m down) — control the early downhills or pay for it late.
- ▸Low sun in your eyes around km 56–62 — bring a cap or shades.
Next edition
28 August 2026
Typical race-day conditions
12–25 °C
We lock the real forecast into your plan in race week.
Course difficulty
BrutalDriven by 5493 m of climbing, altitude up to 2570 m, 5668 m of quad-pounding descent. Harder than The Canyons Endurance Runs 100M (10.0), easier than Diagonale des Fous (10.0) — tougher than 76% of the races we cover.
Race data quality
Medium confidence
Last verified: source review pending
Course distance, climate, and broad course features are suitable for pacing previews. Elevation profiles and aid-station details are approximate and should be checked against the official race packet before race day.
Elevation profile
Verified profile
Paid strategy guardrail
Official race packet remains source of truth
- Community GPX (VisuGPX) + Open-Elevation DEM
Step 1 · Free preview
See the course-adjusted plan first
Enter one recent result. The preview returns course cost, first splits, and fuel target from the deterministic engine and the current course data model.
VDOT
49.1
Estimate
13:12:18
Course cost
+347:41
Fuel target
90 g/h
First 5 km preview
full race locked
- km 15:06
- km 27:04
- km 314:22
- km 47:17
- km 59:19
First race free · then €7 Race Pass · no monthly subscription
Uses an approximate course model; verify final logistics against the official race packet.
Step 2 · Your full CCC by UTMB plan
The preview shows the shape. The plan races it for you.
Course preview
Free
what you see now
- ✓Difficulty score & course data
- ✓Course-cost & toughest km
- ✓Your first full plan free, ever
Race Pass
€7
one-time, this race
- ✓Every km split, weather-adjusted
- ✓Nutrition & fluid timeline
- ✓Heat, wind & sun race tactics
- ✓Danger zones + watch file (GPX)
- ✓Race-week forecast & reminders
Annual
€19
per year, every race
- ✓Everything in Race Pass
- ✓Unlimited races, all year
- ✓Re-plan as your fitness changes
No subscription required — one race is a one-off €7. Cancel anytime on Annual.
Continue with approximate course data →Course elevation
5493 m total gain · 5668 m loss · max 2570 m, min 1040 m.
Fly the course
Sun & shade
Sun in your eyes
13 km
Sun on your back
19 km
Side / overhead
30 km
Expect low sun roughly in your eyes around km 56–62 — pack a peaked cap or shades; low glare hides kerbs and potholes. From km 4 the sun sits high overhead — peak UV and radiant heat, so keep sunscreen on and run the shaded side of the road where you can.
Approximate — solar position from the route geometry and a 09:00:00 start (timezone estimated from longitude), for a mid-pack finishing time.
Signature sections
Tête de la Tronche
First major climb out of Courmayeur to ~2584 m.
Grand Col Ferret
High point ~2537 m; the Italy-to-Switzerland border crossing.
Champex-Lac
Midpoint Swiss lake village, major aid station.
Tête aux Vents / La Flégère
Final brutal climb and balcony traverse above Chamonix.
Race overview
The CCC is a ~100 km point-to-point ultra following the second half of the Tour du Mont-Blanc, from Courmayeur (Italy) over Grand Col Ferret into Switzerland (Champex-Lac), then through Trient and Vallorcine into France, finishing in Chamonix. The route measures 95.38 km with about 5493 m of climbing and 5668 m of descent (high point 2570 m). It typically runs in August.
How hard is this course?
Reference table — how the CCC by UTMB compares to a flat sea-level course for four typical fitness levels. Computed from the route profile, mean course altitude, and typical race-week climate (19 °C / 64 % humidity). Your personal strategy uses your VDOT, per-km splits, nutrition timing, and the typical climate baseline for this static sample; paid strategies use Open-Meteo when a verified race date is inside the forecast window.
| Runner | Flat-course finish | CCC by UTMB finish | Course cost | Adjusted pace |
|---|---|---|---|---|
| Beginner (VDOT 35) | 9:42:58 | 17:18:48 | +78.2% | 6:31/km |
| Intermediate (VDOT 45) | 7:56:49 | 14:09:40 | +78.2% | 5:20/km |
| Trained (VDOT 50) | 7:17:52 | 13:00:16 | +78.2% | 4:54/km |
| Competitive (VDOT 60) | 6:17:29 | 11:12:39 | +78.2% | 4:13/km |
Reference nutrition
For a 70 kg runner finishing in 13:00:16 at 19 °C. Adjust to your weight and tolerance — these are ISSN-window targets, not prescriptions.
- Carbs / hour
- 90 g
- Total carbs
- 1170 g
- Fluid / hour
- 665 ml
- Sodium / hour
- 500 mg
FAQ
Get your personalized strategy
The numbers above are samples. Sign up free and get the full CCC by UTMB strategy from your VDOT, the current course model, Open-Meteo race-week forecast when available, and your nutrition preferences.
First race free · €7 per additional race · €19/yr for unlimited
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New to trail and ultra pacing? Start with our trail and ultra pacing guide or run the VDOT calculator.