CCC Aid Station Planner
All 10 CCC checkpoints pre-loaded. Enter your goal finish time to get estimated arrival times from Courmayeur to Chamonix.
Full CCC (Courmayeur-Champex-Chamonix) course data: aid stations, cutoffs, course profile
Enter a goal CCC finish time and get estimated arrival times at every checkpoint from Courmayeur to Chamonix - 108 km with around 6,200 m of climbing, with crew and drop bag points flagged.
Turns every arrival into a clock time and every cutoff into a margin.
Terrain changes how the goal time is shared between segments, not the total. One surface everywhere cancels out.
Checkpoints (13)
Cutoff Fri 13:45
Cutoff Fri 16:30
Cutoff Fri 20:15
Cutoff Fri 23:15
Cutoff Sat 02:15
Cutoff Sat 05:15
Cutoff Sat 08:30
Cutoff Sat 13:30
CCC
Goal 22:11 · Start Fri 09:00
- Crew may meet you at
- Champex-Lac 54.2 km, by Fri 20:14
- Vallorcine 90.1 km, by Sat 03:48
- Drop bags
- Champex-Lac 54.2 km, by Fri 20:14
| Checkpoint | Dist (km) | D+ (m) | Km-effort | Arrive by | Clock | Cutoff | Buffer | Leave by | Seg time | Seg pace/km |
|---|---|---|---|---|---|---|---|---|---|---|
| Start | 0 | 0 | - | 0:00:00 | Fri 09:00 | - | - | - | - | - |
| Tete de la Tronchelikely hiking (pace) | 9.4 | +1418 | 24.1 | 2:38:45 | Fri 11:38 | - | - | Fri 12:57Set by Refuge Bertone | 2:38:45 | 16:53 |
| Refuge Bertone | 13.6 | +18 | 7.3 | 3:26:45 | Fri 12:26 | Fri 13:45 | 1h18 | Fri 14:12Set by Arnouvaz | 0:48:00 | 11:26 |
| Refuge Bonatti | 21.1 | +324 | 12.1 | 4:46:49 | Fri 13:46 | - | - | Fri 15:32Set by Arnouvaz | 1:20:04 | 10:41 |
| Arnouvaz | 26.3 | +148 | 8.7 | 5:44:01 | Fri 14:44 | Fri 16:30 | 1h46 | Fri 17:08Set by La Fouly | 0:57:12 | 11:00 |
| Grand Col Ferretlikely hiking (pace) | 30.8 | +762 | 12.2 | 7:04:23 | Fri 16:04 | - | - | Fri 18:28Set by La Fouly | 1:20:22 | 17:52 |
| La Fouly | 40.7 | +104 | 16.1 | 8:50:26 | Fri 17:50 | Fri 20:15 | 2h25 | Fri 20:50Set by Champex-Lac | 1:46:04 | 10:43 |
| Champex-Lac | 54.2 | +513 | 21.9 | 11:14:38 | Fri 20:14 | Fri 23:15 | 3h00 | Fri 23:40Set by Martigny | 2:24:12 | 10:41 |
| Martigny | 69.2 | +239 | 23.4 | 13:49:06 | Fri 22:49 | Sat 02:15 | 3h26 | Sat 02:49Set by Trient | 2:34:27 | 10:18 |
| Trientlikely hiking (pace) | 79.1 | +1077 | 22.1 | 16:14:43 | Sat 01:14 | Sat 05:15 | 4h00 | Sat 05:56Set by Vallorcine | 2:25:37 | 14:43 |
| Les Tseppeslikely hiking (pace) | 82.9 | +647 | 10.3 | 17:22:58 | Sat 02:22 | - | - | Sat 07:04Set by Vallorcine | 1:08:15 | 17:58 |
| Vallorcine | 90.1 | +161 | 13.0 | 18:48:42 | Sat 03:48 | Sat 08:30 | 4h41 | Sat 10:07Set by Chamonix (Finish) | 1:25:44 | 11:55 |
| Chamonix (Finish) | 107.8 | +789 | 30.7 | 22:11:00 | Sat 07:11 | Sat 13:30 | 6h19 | - | 3:22:18 | 11:26 |
Tete de la Tronchelikely hiking (pace)
Fri 11:38Leave by Fri 12:57Set by Refuge Bertone
- Dist (km)
- 9.4
- D+ (m)
- +1418
- Seg time
- 2:38:45
- Seg pace/km
- 16:53
Refuge Bertone
Fri 12:26Cutoff Fri 13:451h18
Leave by Fri 14:12Set by Arnouvaz
- Dist (km)
- 13.6
- D+ (m)
- +18
- Seg time
- 0:48:00
- Seg pace/km
- 11:26
Refuge Bonatti
Fri 13:46Leave by Fri 15:32Set by Arnouvaz
- Dist (km)
- 21.1
- D+ (m)
- +324
- Seg time
- 1:20:04
- Seg pace/km
- 10:41
Arnouvaz
Fri 14:44Cutoff Fri 16:301h46
Leave by Fri 17:08Set by La Fouly
- Dist (km)
- 26.3
- D+ (m)
- +148
- Seg time
- 0:57:12
- Seg pace/km
- 11:00
Grand Col Ferretlikely hiking (pace)
Fri 16:04Leave by Fri 18:28Set by La Fouly
- Dist (km)
- 30.8
- D+ (m)
- +762
- Seg time
- 1:20:22
- Seg pace/km
- 17:52
La Fouly
Fri 17:50Cutoff Fri 20:152h25
Leave by Fri 20:50Set by Champex-Lac
- Dist (km)
- 40.7
- D+ (m)
- +104
- Seg time
- 1:46:04
- Seg pace/km
- 10:43
Champex-Lac
Fri 20:14Cutoff Fri 23:153h00
Leave by Fri 23:40Set by Martigny
- Dist (km)
- 54.2
- D+ (m)
- +513
- Seg time
- 2:24:12
- Seg pace/km
- 10:41
Martigny
Fri 22:49Cutoff Sat 02:153h26
Leave by Sat 02:49Set by Trient
- Dist (km)
- 69.2
- D+ (m)
- +239
- Seg time
- 2:34:27
- Seg pace/km
- 10:18
Trientlikely hiking (pace)
Sat 01:14Cutoff Sat 05:154h00
Leave by Sat 05:56Set by Vallorcine
- Dist (km)
- 79.1
- D+ (m)
- +1077
- Seg time
- 2:25:37
- Seg pace/km
- 14:43
Les Tseppeslikely hiking (pace)
Sat 02:22Leave by Sat 07:04Set by Vallorcine
- Dist (km)
- 82.9
- D+ (m)
- +647
- Seg time
- 1:08:15
- Seg pace/km
- 17:58
Vallorcine
Sat 03:48Cutoff Sat 08:304h41
Leave by Sat 10:07Set by Chamonix (Finish)
- Dist (km)
- 90.1
- D+ (m)
- +161
- Seg time
- 1:25:44
- Seg pace/km
- 11:55
Chamonix (Finish)
Sat 07:11Cutoff Sat 13:306h19
- Dist (km)
- 107.8
- D+ (m)
- +789
- Seg time
- 3:22:18
- Seg pace/km
- 11:26
Highlighted rows use a pace heuristic (>12 min/km / >19 min/mi) - likely hiking by speed, not grade. The grade-based power-hike cue is ≥15% (see GAP and Incline tools). Times are distributed proportionally by km-effort.
Leave by is the latest you can start the next segment and still make every cutoff ahead of you at this pace - often set by a station further on, not this one. It does not yet subtract the time you spend stopped, so treat it as the optimistic edge.
Cutoff buffers are estimates from your goal time and published barriers. Courses and barriers change - verify against the official race guide.
Next step
CCC course in numbers
- Climbing per km
- 58 m
- ITRA km-effort
- 170 (100K)
- Highest point
- 2,584 m
- Biggest climb
- +1,428 m over 8.8 km at 15.2% (Start - Courmayeur to Tete de la Tronche)
- Steepest climb
- +768 m over 4.2 km at 18.0% (Arnouvaz to Grand Col Ferret)
- Longest descent
- -1,038 m over 14.1 km at 6.7% (through La Fouly)
- Track climbing above 3%
- 38%
- Winning time / cutoff
- 10h00 / 28h30 (2.9x the winner's time)
Section-by-section climbs, descents and grades are on the CCC course page.
About CCC
The CCC (Courmayeur-Champex-Chamonix) is a 108km UTMB World Series race that covers the final two-thirds of the UTMB course in reverse, starting in Courmayeur, Italy and finishing in Chamonix, France. With 6,200m of elevation gain, it shares the same high mountain terrain as UTMB but at a more accessible distance.
The opening climb from Courmayeur. Unlike UTMB which arrives at Courmayeur after 79km, CCC runners start there fresh and immediately climb to Refuge Bertone (900m D+ in 7km). This opening test sorts runners early - going out too hard on the Bertone climb is the most common early mistake.
Shared terrain with UTMB. Runners who have studied UTMB know the Grand Col Ferret (Swiss border crossing), La Fouly, Champex-Lac, Trient, and Vallorcine well. The key difference is that CCC runners cover this section fresher than UTMB runners - which can lead to pacing errors in the other direction (going too fast because the legs feel good after "only" 40km).
The final climb to La Flegere. At 82km, the 1,200m climb to La Flegere is the last major effort before the descent into Chamonix. For runners finishing in 18-22 hours, this climb arrives in the early morning hours. Pacing this section conservatively determines finish condition.
Crew access points: Champex-Lac (54.2km) and Vallorcine (90.1km). Drop bags allowed at Champex-Lac only.
Checkpoint data approximate - verify against current official UTMB World Series race guide at utmb.world before your race.
How the splits are allocated
Your goal time is split across the CCC legs by km-effort: distance + gain/100 + loss/200. Full methodology.
Save your CCC plan and brief your crew in the app
TrailMath uses these models to build periodized plans adjusted to your goals and terrain.
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