Skip to content

RaceWorth™

RacesAlps

Destination100KLottery

CCC

Demand

4 out of 5

How much it asks

Worth

5 out of 5

Whether the ticket is worth it

Courmayeur to Chamonix, France

Lac Blanc and Aiguilles above Chamonix
Lac Blanc and Aiguilles above Chamonix Tiia Monto / Wikimedia Commons · CC BY-SA 3.0

Scorecard · is it worth it?

Worth the trip if the mountains match what you want.

The card

CCC is the Mont Blanc 100K that is allowed to be worth more than it demands. Demand is 4: Courmayeur to Champex to Chamonix, about 108 kilometers and 6,200 meters of climb, late August, the same cols and storms as the flagship, a long alpine day that becomes a night if you are honest about your pace. It is not 5 because it is not 174 kilometers and because the technicality is TMB-family trail, not a scramble. It is not a 3 because this is still a mountain 100K in three countries, not a lakeside loop with a World Series sticker.

Worth is 5 because the massif is the product, and you get a serious helping of it without buying the full circus of the 174. You still buy stones, an Index, a lottery, and Chamonix in August. That is in logistics and value. It is not a reason to score the weekend a 3. Destination, not icon: the icon in this valley is UTMB. CCC is the card for people who wanted the mountains more than the 46-hour identity. Organization confidence is high. The machine is the same machine.

The next date is not yet posted by the RD. OCC is the 60K. TDS is the harder long one, start earlier in the week. We score each. If you wanted quiet Alps, none of these three are quiet in race week. If you wanted the Dolomites, Lavaredo is the other worth-5 100K in this batch. If you wanted Chamonix without pretending you ran the 174, this is the honest 100K. Worth beating demand is the point of the card, not a brochure.

Who it is for

Runners who want the Mont Blanc massif as a 100K rather than a 174, and who will tolerate UTMB week to stand in Courmayeur at dawn.

Who should skip

Anyone who wanted the icon 174, or anyone who resents stones so much they will not look at the same mountains on a shorter line.

Elevation

ft3,0004,0005,0006,0007,0008,0009amnoon4pm8pmmidnight+1d4am+1dRefuge Bertone · 8.5 mi · cutoff 4.75 hArnouvaz · 16.3 mi · cutoff 7.5 hLa Fouly · 25.3 mi · cutoff 11.25 hChampex-Lac · 33.7 mi · cutoff 14.25 hPlan de l'Au · 36.7 mi · cutoff 15.25 hMartigny · 43 mi · cutoff 17.25 hTrient · 49.2 mi · cutoff 20.25 hVallorcine · 56 mi · cutoff 23.5 hChamonix · 67 mi · cutoff 28.5 h

Tap or hover for miles, clock, and aidft

Dark from 20:18 to 06:47 local. The median finisher is in the dark from Trient onward (11:36pm).

Bottom ticks are aid. Longest gap 11.0 mi.

Course line from official GPX. Dots are aid. Tap or hover for mile, elevation, and clock.

Finisher pace

Not yet sourced.

Where the cutoff bites

Least margin: Refuge Bertone, 93 min for the back of the field.

Finishers only. DNFs are missing, so the real back of the field is slower.

Hardest stretch

Hardest stretch: Start to Refuge Bertone, 4,589 ft in 8.5 mi.

Segment gains from the course elev profile.

FromToMiGainLoss
StartRefuge Bertone8.513.7 km4,589 ft1,399 m1,955 ft596 m
Refuge BertoneArnouvaz7.812.6 km1,063 ft324 m1,829 ft557 m
ArnouvazLa Fouly9.014.5 km2,585 ft788 m3,339 ft1,018 m
La FoulyChampex-Lac8.413.5 km1,621 ft494 m1,875 ft571 m
Champex-LacPlan de l'Au3.04.8 km178 ft54 m618 ft188 m
Plan de l'AuMartigny6.310.1 km2,248 ft685 m1,850 ft564 m
MartignyTrient6.210 km2,501 ft762 m2,214 ft675 m
TrientVallorcine6.810.9 km1,958 ft597 m1,960 ft597 m
VallorcineChamonix1117.7 km1,074 ft327 m2,787 ft849 m
Start
4,006 ft1,221 m
Finish
3,396 ft1,035 m
Net
−610 ft−186 m
Longest climb
2,559 ft780 m

Point to point. Net downhill. Total climb is still in Facts.

Weekend

Official handbook facts

Start
09:00
Kit
Required · Mandatory UTMB Mont-Blanc equipment list.
Tracker
Open
Course file
Open

Printable cutoff card

CCC 2026 race page / UTMB mandatory equipment · retrieved 2026-09-06 (repo record)

Field

Last editions · 100K scored distance

Field evidence: who showed up, who finished, how long. DNF is that evidence, not a difficulty score. Public results, scored distance only.

DNF over the years

202428%202523%202623%

DNF 23% in 2026, 23% the year before.

2026

Starters
1,974
Finishers
1,516
DNF
23%
Win
10:21:48
Median
22:11:24
retrieved 2026-09-06 (repo record)

2025

Starters
2,127
Finishers
1,641
DNF
23%
Win
10:06:02
Median
21:26:57
retrieved 2026-09-06 (repo record)

2024

Starters
2,269
Finishers
1,636
DNF
28%
Win
10:20:11
Median
21:51:47
retrieved 2026-09-06 (repo record)

Starters, finishers, and win from public results tables for the scored race. Median from LiveTrail finish times.

Overall field only. Not a pro or sponsored subset.

Where people drop

DNF by last recorded station · 2026. 1,974 starters.

  • Départ2
  • Bertone8
  • Arnouvaz19
  • La Fouly53
  • Champex-Lac3
  • Champex-Lac152
  • Martigny69
  • Trient104
  • Tseppes4
  • Vallorcine27
  • Vallorcine3

Most drops: Champex-Lac, 152 of 1,974 in 2026

LiveTrail 2026 stats abandonments (abds)retrieved 2026-09-07

Climate

Typical August at the start area · historical race-week weather

Typical high
75°F (24°C)
Typical low
52°F (11°C)
Typical precip
3.3 in (83 mm) / August
Days with rain
35% of days
High point
8,478 ft (2,584 m)

BewareRain on race weekend in 2 of the last 3 years.

2015–2024 August means at the start / massif. · Open-Meteo ERA5 / climate · retrieved 2026-09-06 (repo record)

Dimensions

Ten 1–5 scores with a one-line why. Organization has a separate confidence tag.

Supporting dimensions · organization confidence high

Distance & format
How much does the advertised distance and format actually ask?
4 out of 5

108 km, Courmayeur to Chamonix. A mountain 100K, not a shortened UTMB and not a 50K.

Vertical
How serious is the climbing, not just the mile marker?
4 out of 5

About 6,100 m of climb. Dense alpine climbing without the 174 km tax.

Technicality
Hands, poles, route-finding, or just a long dirt road?
3 out of 5

TMB-family trail, crowded on race week. Alpine, often runnable, occasionally steep.

Climate
Heat, monsoon, ice, or a friendly summer afternoon?
4 out of 5

Late August on the massif: storms, cold cols, heat in the valley. Same weather as the 174.

Altitude
Does the air change the race, or is it a talking point?
3 out of 5

Grand Col Ferret and the usual TMB high points. Alpine, not Hardrock-thin.

Logistics
How hard is the weekend around the race: travel, crew, lodging, rules?
4 out of 5

Stones, Index, lottery, Chamonix week. Easier than UTMB only in distance.

Prestige & field
Does the start list and history change what the weekend feels like?
4 out of 5

A deep field in the same town as the final. Not the icon; still a destination start list.

Organization
From public evidence, does the event look competently run?
4 out of 5

The same professional machine as UTMB. Competent, commercial, high confidence.

Value
Entry fee, travel tax, and lottery friction versus what you get on course.
3 out of 5

Circuit tax for a 100K on the massif. Worth 5 is the place, not the stones.

Adventure & scenery
Would you fly for the place even if nobody kept score?
5 out of 5

Italy to France under Mont Blanc. This is why worth outruns demand.