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UTMB Mont-Blanc OCC 2026 Pacing Calculator

Sixty kilometres from Orsières to the Chamonix finish arch.

Distance
60 km
60km
Total climb
3500m
official D+
Total descent
3500m
official D−
High / low
2299m
low 915m
1000m1500m2000m
Champex-Lac
Trient6:00:00
Col de Balme9:15:00
Argentière13:00:00
0km10km20km30km40km50km60km
Your goal
Goal type
:
hrsmin
Pacing strategy
Constant effort start to finish.
Projected finish
10:09:00
Even effort · incl. 9:00 rest
Pace
10:00
avg/km
GAP
8:22
flat-equiv/km
VAM
356m
/hr on climbs
Pacing splits · Even effort
SectionLengthTarget paceVAMVertGAPElapsed
0m–1.5km1.5km8:45/km31m/hr+7m8:22/km13:28
1.5km–7.3km5.8km13:46/km384m/hr+509m8:22/km1:32:56
1Champex-Lac
Arrive1:32:56☀ 9:47 AM
Rest
2min
Leave1:34:56☀ 9:49 AM
No cutoff
7.3km–9.2km1.9km10:25/km195m/hr+65m8:22/km1:54:59
9.2km–12.3km3.1km6:33/km—−157m8:22/km2:15:12
12.3km–16.9km4.6km16:53/km480m/hr+624m8:22/km3:33:10
16.9km–23.8km6.9km5:39/km—−614m8:22/km4:12:00
2Trient
Arrive4:12:00☀ 12:27 PM
Rest
2min
Leave4:14:00☀ 12:29 PM
Cutoff 6:00:00+1:48:00
23.8km–30.8km7.0km15:40/km418m/hr+763m8:22/km6:03:31
30.8km–32.3km1.5km9:11/km55m/hr+13m8:22/km6:17:40
32.3km–33.5km1.2km11:28/km265m/hr+60m8:22/km6:31:16
3Col de Balme
Arrive6:31:16☀ 2:46 PM
Rest
2min
Leave6:33:16☀ 2:48 PM
Cutoff 9:15:00+2:43:44
33.5km–35.4km1.9km12:03/km300m/hr+114m8:22/km6:56:04
35.4km–40.0km4.6km5:30/km—−541m8:22/km7:21:28
40.0km–43.1km3.1km14:23/km392m/hr+289m8:22/km8:05:45
43.1km–46.2km3.1km4:21/km—−566m8:22/km8:19:10
46.2km–47.7km1.5km10:00/km164m/hr+42m8:22/km8:34:34
47.7km–50.2km2.5km5:46/km—−232m8:22/km8:49:14
4Argentière
Arrive8:49:14☀ 5:04 PM
Rest
3min
Leave8:52:14☀ 5:07 PM
Cutoff 13:00:00+4:10:46
50.2km–52.3km2.1km8:31/km——8:22/km9:09:54
52.3km–53.8km1.5km7:42/km—−31m8:22/km9:21:46
53.8km–55.4km1.5km10:41/km230m/hr+63m8:22/km9:38:14
55.4km–58.5km3.1km5:51/km—−250m8:22/km9:56:17
58.5km–60.0km1.5km8:16/km—−10m8:22/km10:09:00

GAP is grade-adjusted pace, the flat-equivalent pace for the effort. On an even-effort plan it stays roughly constant while your actual target pace rises on climbs and falls on descents. Switch to “By terrain” to pace the course by its climbs and descents. The highlighted rows are aid stations: edit your rest with the ± steppers and every arrival, departure and the 9:00 of total stopped time folds into the elapsed clock. The cutoff badge shows your buffer against the official cutoff at arrival. The ☀/☾ is the wall-clock hour from the official 8:15 AM start, so you know when to expect a headlamp.

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