Loading...
Ultras · FR · Haute-Savoie

UTMB

HOKA UTMB Mont-Blanc 2026 - UTMB (23rd edition)
Scheduled
Registration is closed (raceStatus.status: "registration_closed"); race runs 28-30 Aug 2026 as part of the 24-30 Aug HOKA UTMB Mont-Blanc week.
Race dateAugust 28-30, 2026
Duration3 days
Start5:45pm
Whenin 6 days
First held2003
Official website Entry Results Aid stations Crew directions
Free, and always will be. NavRun makes money from race-day planning for runners who want it, never from this. Ultras change constantly, sometimes the morning of. Always confirm with the race director and the official website before you rely on anything here.
Distance 174K
Climb 31,946 ft
Descent 31,932 ft
High point 8,422 ft
Time limit 46:45:00
Aid stations 32
Started not checked yet
Finished not checked yet
Finish rate not checked yet
The course

Where it goes loop · 32 aid stations · rust marks a stop your crew can reach

Course line from the race's own GPX. Source file.

One loop out of Chamonix, France, circumnavigating the Mont-Blanc massif through Italy and Switzerland and back, crossing 4 UTMB personal-assistance stations (Les Contamines, Courmayeur, Champex-Lac, Vallorcine) among 14 named checkpoints and 18 total waypoints on the official Time Chart.

Numbers that do not reconcile, recorded rather than resolved: the race page banner and the Runner's Guide cover both give 174km / 9,900m D+; the guide's own body text on the UTMB race page instead says "171kms of trails and 10,000m of D+"; the website's underlying GPX-derived track stats give 176.865km / +10,000m / -9,999m; and the guide's own official TIME CHARTS table sums to 177.6km / +9,737m / -9,733m at the finish line -- all four are 2026-edition, non-archival numbers from the same organizer within the same document set. distance_miles and elevation_gain_ft/elevation_loss_ft here use the TIME CHARTS total (the operational pacing document, same precedent as Western States' checkpoint chart over its FAQ); published_distance_value/published_gain use the headline banner figure. The TIME CHARTS table itself has one internal anomaly: cumulative D+ is printed as 9,937m at La Flegere (km 170.6) then 9,737m at the Chamonix finish (km 177.6), a 200m DECREASE, which is not possible for a true running cumulative-gain column (the matching D- column is perfectly monotonic end to end). leg_climb_ft for that final leg is left null rather than publish a fabricated or negative number. The organizer itself notes: "the course (distance and elevation gain) may be adjusted depending on terrain constraints."

The race

What this one is

The UTMB is the headline 100-mile race of HOKA UTMB Mont-Blanc week: a single-stage loop out of Chamonix that circumnavigates the Mont-Blanc massif through France, Italy and Switzerland, roughly 170-178km with about 9,900-10,000m of climb, crossing 18 towns above 2,500m at its high points. It is the 100M final of the UTMB World Series.

Created in 2003. Per the race's own framing: "the most mythical and prestigious trail running race in the world", won in as little as ~20 hours or as long as the 46:45 time limit allows, by elite and amateur runners on the same course.

Getting in

Getting in Entry, lottery and what the race asks of you before race day.

Lottery
Yes montblanc.utmb.world
Lottery opens
not checked yet
Lottery draw
not checked yet
Field cap
2500 issuu.com
Registration
UTMB montblanc.utmb.world
Qualifying
A valid UTMB Index in category 100K or 100M is required to register, plus at least 1 Running Stone earned in the past 24 months at a UTMB World Series Event or Major to enter the Finals lottery. montblanc.utmb.world
Minimum age
20 montblanc.utmb.world
Transfers
No montblanc.utmb.world
Deferrals
No montblanc.utmb.world
Crew, pacers and drop bags

The rules that shape your day Anything marked "not checked yet" is a gap in what we hold, never a no from the race.

Crew allowed
Yes montblanc.utmb.world
Vehicles per runner
not checked yet
Pacers
No montblanc.utmb.world
Muling
not checked yet
Drop bags
Yes montblanc.utmb.world
Cupless
Yes montblanc.utmb.world
Course marking
Fully Marked montblanc.utmb.world
Night running
Yes issuu.com
Dogs
Not allowed montblanc.utmb.world
Headphones
not checked yet
Crew rules
Crew ('personal assistance') is allowed only at 4 stations: Les Contamines (km 32.6), Courmayeur (km 83.7), Champex-Lac (km 130.5) and Vallorcine (km 159.2), one assistant at a time in a reserved zone, on presentation of a numbered 'assistance ticket' (1 ticket = 1 person, issued in the bib envelope). The assistant may hand over one bag up to 30L; no medical/paramedical assistance from crew is allowed. Outside those zones, being accompanied on the route at all -- even without physical contact -- is itself a penalizable offence. Private-car access to all 4 crew stations (plus Saint-Gervais, La Fouly and Col de la Forclaz) is blocked by road/parking closures during the event; crew must buy a paid UTMB Mobility shuttle pass in advance (sale window 09/06-12/07/2026, no on-site sales) to reach them. montblanc.utmb.world
Pacer rules
UTMB has no pacer concept at all: the word does not appear anywhere in the race's own rules or practical-information pages. The only on-course companionship rule is 'personal assistance' at the 4 crew stations above (a stationary handoff, not someone who runs alongside), and the regulations separately penalize 'being accompanied along the route... outside tolerance zones' even without physical contact. Runners are on their own between checkpoints by design (regulation clause 'SEMI-AUTONOMY / SELF-SUFFICIENCY'). montblanc.utmb.world
Drop bag rules
Two separate drop bags (provided at bib collection): the first is delivered to the Courmayeur aid station (km 83.7), the second to Champex-Lac (km 130.5). Both are then transported to the finish in Chamonix and must be claimed within 2 hours of finishing. Only organizer-issued bags are transported; no poles, valuables or fragile items allowed in them. montblanc.utmb.world
Cutoff philosophy
Cut-off times are calculated to let every runner reach the finish inside the 46:45 limit; a runner must leave each checkpoint before its barrier, whatever time they arrived. If the start is run in waves, barriers are set from the LAST wave's start. montblanc.utmb.world
Aid stations

Every stop, and what you get there ● yes   · no   ? nobody has checked   – does not apply to this race

Mile Station Cutoff Crew Bag Pacer Med To next
0.00 Chamonix
3,422 ft
 ? ? ? ? ● 5.72
5.72 Les Houches
3,317 ft
 ? · · ? ● 8.51
14.23 Saint-Gervais
2,661 ft
 10:00pm · · ? ● 6.03
20.26 Les Contamines
3,816 ft
 12:00am ● · ? ● 2.73
22.99 Notre Dame de la Gorge
3,980 ft
 ? ? ? ? ? 2.67
25.66 La Balme
5,614 ft
 2:00am ? ? ? ? 2.36
28.02 Col du Bonhomme
7,644 ft
 ? ? ? ? ? 1.25
29.27 Refuge de la Croix du Bonhomme
8,035 ft
 ? ? ? ? ? 3.29
32.56 Les Chapieux
5,072 ft
 5:15am · · ? ● 6.71
39.27 Col de la Seigne
8,241 ft
 ? ? ? ? ? 1.68
40.95 Col des Pyramides Calcaires
8,422 ft
 ? ? ? ? ? 3.35
44.30 Lac Combal
6,434 ft
 10:00am · · ? ● 1.74
46.04 Arete du Mont Favre
7,995 ft
 ? ? ? ? ? 2.86
48.90 Checrouit - Maison Vieille
6,404 ft
 ? · · ? ● 3.11
52.01 Courmayeur Forum Sport Center
3,927 ft
 1:15pm ● ● ? ● 3.42
55.43 Refuge Bertone
6,486 ft
 ? · · ? ● 4.72
60.15 Refuge Bonatti
6,640 ft
 ? ? ? ? ? 3.23
63.38 Arnouvaz
5,860 ft
 6:15pm · · ? ● 2.92
66.30 Grand Col Ferret
8,320 ft
 ? ? ? ? ? 2.24
68.54 La Peule
6,801 ft
 ? ? ? ? ? 3.97
72.51 La Fouly
5,256 ft
 10:30pm · · ? ● 5.04
77.55 Praz de Fort
3,789 ft
 ? ? ? ? ? 3.54
81.09 Champex-Lac
4,829 ft
 2:30am ● ● ? ● 3.04
84.13 Plan de l'Au
4,386 ft
 3:45am ? ? ? ? 4.17
88.30 La Giete
6,171 ft
 ? ? ? ? ? 3.10
91.40 Trient
4,288 ft
 8:00am · · ? ● 2.49
93.89 Les Tseppes
6,381 ft
 ? ? ? ? ? 5.03
98.92 Vallorcine
4,154 ft
 11:15am ● · ? ● 2.92
101.84 Col des Montets
4,685 ft
 ? ? ? ? ? 1.12
102.96 Tete de Bechar
5,600 ft
 ? ? ? ? ? 3.05
106.01 La Flegere
6,227 ft
 2:45pm · · ? ● 4.35
110.36 Chamonix
3,425 ft
 4:30pm ? ? ? ● ?
Driving your crew

Getting your people there 4 stops with directions the race published.

Les Contamines mile 20.26 cutoff 12:00am shuttle

Do not drive here: road and parking closures during the event make Les Contamines, Courmayeur, La Fouly, Champex and Vallorcine unreachable by private car. Crew must buy a paid UTMB Mobility shuttle pass (sold 09/06-12/07/2026 only, no on-site sales) and book a departure slot; the only stated exceptions are people with disabilities, families with children under 3, and support crews for top-elite runners.

montblanc.utmb.world
Courmayeur Forum Sport Center mile 52.01 cutoff 1:15pm shuttle

Do not drive here: road and parking closures during the event make Les Contamines, Courmayeur, La Fouly, Champex and Vallorcine unreachable by private car. Crew must buy a paid UTMB Mobility shuttle pass (sold 09/06-12/07/2026 only, no on-site sales) and book a departure slot; the only stated exceptions are people with disabilities, families with children under 3, and support crews for top-elite runners.

montblanc.utmb.world
Champex-Lac mile 81.09 cutoff 2:30am shuttle

Do not drive here: road and parking closures during the event make Les Contamines, Courmayeur, La Fouly, Champex and Vallorcine unreachable by private car. Crew must buy a paid UTMB Mobility shuttle pass (sold 09/06-12/07/2026 only, no on-site sales) and book a departure slot; the only stated exceptions are people with disabilities, families with children under 3, and support crews for top-elite runners.

montblanc.utmb.world
Vallorcine mile 98.92 cutoff 11:15am shuttle

Do not drive here: road and parking closures during the event make Les Contamines, Courmayeur, La Fouly, Champex and Vallorcine unreachable by private car. Crew must buy a paid UTMB Mobility shuttle pass (sold 09/06-12/07/2026 only, no on-site sales) and book a departure slot; the only stated exceptions are people with disabilities, families with children under 3, and support crews for top-elite runners.

montblanc.utmb.world
Add to this page

What you know every one of these is read by a person before it changes anything

Ran this race? Tell the next runner what you know.

Nobody sees it until we have read it. No account, no sign-in.

Leave blank if it applies to the whole race.

Leave blank if it is not about one particular stop.

Optional. Something like “Cal Street, mile 62 to 78”.

Write it the way you would say it to someone at the start line.

Optional, and it decides nothing. It only tells the next runner where this is coming from.

Optional.

Optional, and never shown on the page. Only so we can ask you a question about this note.

Leave this field blank.

See something wrong or out of date? Suggest an edit.

This changes nothing on the page on its own. Somebody checks it against the race first.

Optional. Filled in for you when you start from a specific line on the page.

Copy it as it appears, so we can find it.

The corrected value.

Required. Where it came from: the race email, the runner manual, what you saw on the day.

Optional.

Optional. A screenshot or a photo of the sign works.

Optional, and it decides nothing.

Optional.

Optional, only so we can come back to you about this correction.

Leave blank if it is about the whole race.

Leave blank if it is not about one particular stop.

Leave this field blank.

Seen a course preview or a film of this one? Send it over.

Somebody watches it before it goes anywhere near this page. What we are after is footage of this course, on the ground. If it would be just as true of any other race, it is not this.

Required. A line is plenty. Where the climbs are, what the footing does, what the last twenty miles look like.

Optional, and it decides nothing.

Optional.

Optional, and never shown on the page. Only so we can ask you a question about this one.

A YouTube link, a race report, a photo gallery, whatever it is.

Optional, and we credit them on the page.

Leave this field blank.

Have the GPX? Send us the link.

We want the address of the file the race publishes, not the file. We download it from there so the page can say where the line came from.

The page or file on the race's own site.

Optional, and only so we can ask you a question about it.

Are you the race director? Get in touch and we'll make it right.

We read every one of these and we write back. Every fact here carries the source it came from, and the way a wrong one gets fixed is a person checking it against what you tell us.

Required, because this is a conversation and we write back.

Tell us what is wrong, out of date, or missing on this page. We read every one of these and we will get back to you.

Optional.

So we know who we are writing back to.

Optional. Director, assistant, comms, whoever you are.

Leave this field blank.

Where this came from. Every fact on this page records its source and when we last checked it: 542 sources for this race. Hover a source link to read the sentence it came from.
64% of what we track for a course is filled in. The rest says "not checked yet" rather than guessing.
See something wrong or out of date? Suggest an edit
Ran this race? Tell the next runner what you know
Got footage of this course? Send us the link
Are you the race director? Get in touch and we'll make it right.
Anything else: [email protected]
Running this one?

NavRun builds your pacing from your own training, then turns it into a plan your crew can follow: when to leave and where to park.

Start free