Gran Trail Courmayeur - GTC30 - Elevation Profile, Aid Stations and Cutoffs
- Courmayeur, Valle d'Aosta, Italy
- 26.1 km16.2 mi
- 2,000 m6,562 ft D+
- 4 aid stations
- 2 ITRA points
Map, checkpoints and cutoffs Map · checkpoints · forecast opens Jul 1 Race-day forecast is live
Race-day conditions
Weather and daylight along the course and at all 6 checkpoints, set to the 09:00 start.
- Start
- 09:00
- Daylight at the start
- 05:51-21:22
- Aid stations
- 4
Course profile
Courmayeur, Valle d'Aosta, ItalyCourmayeur, Valle d'Aosta, Italy· point-to-point
Download the official GPX- Distance
- 26.1 km16.2 miFinishes 5 m lower than it startsFinishes 16 ft lower than it starts
- Elevation
- +2,000 m+6,562 ft-2,005 m-6,578 ftAbout 77 m of climb per kmAbout 405 ft of climb per mile
- Highest point
- 2,524 m8,281 ftPas Entre Deux Sauts
Next editionEst. Sat 10 Jul 2027
Our estimate for Sat 10 Jul 2027. The organiser has not announced the date for this race yet.
- Start
- Winner~2h542h54 after the start
- Median finisher2026 median6h04 after the start
- Cutoff8h after the start
Gran Trail Courmayeur - GTC30 is a 26.1 km ultra-trail with around 2,000 m of elevation gain, starting in Courmayeur, Valle d'Aosta, Italy. The overall cutoff is 8 hours. The highest point on the course is Pas Entre Deux Sauts at 2,524 m. That is 77 m of climbing per kilometre. Gran Trail Courmayeur has 3 races, from 26.1 to 103 km; this one ranks 3 of 3 by distance and 1 of 3 by climbing per kilometre.
The biggest climb between checkpoints gains around 851 m from Start - Courmayeur (km 0) to Mont de La Saxe (km 5.8). The steepest sustained section on the elevation profile averages about 28% over roughly 2 km around km 5. Crew access is allowed at Mont de La Saxe (5.8 km), Rifugio Bonatti (12.92 km) and Currù (20.31 km).
Data is approximate and courses change between editions - always verify against the official race guide.
Other distances at Gran Trail Courmayeur
Plan against the cutoffs
Prepare every aid station against the official cutoffs, then unlock your full roadbook in the app.
Estimate your finish
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Course math
Four numbers worked out from this course's distance, elevation and checkpoints.
TrailMath effort-km
56 effort-km
About 5 h for a mid-pack finisher (index 500). Not a pacing guarantee.
Distance + gain ÷ 100 + loss ÷ 200, beside ITRA's gain-only km-effort. Model TM1.0.
How TrailMath works →UTMB Index category
20K
46 km-effort (distance + gain ÷ 100). Calculated from the course figures, not an official classification.
Estimate your UTMB Index → ITRA and UTMB indexes explainedBiggest climb section
+851 m+2,792 ft
Courmayeur → Mont de La Saxe · km 0–5.8mi 0–3.6
The largest gain between two checkpoints, not one continuous climb.
Biggest descent section
−931 m−3,054 ft
Currù → Courmayeur (Finish) · km 20.3–26.1mi 12.6–16.2
The largest loss between two checkpoints. ITRA's km-effort ignores descent; TrailMath counts it: 56 km-effort.
Open in GPX Explorer →Share this race
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Gran Trail Courmayeur - GTC30 · 2026
Finish times, 2026 edition
432 runners started. 425 came back. Half of them took longer than 6:03:59.That left the median finisher 1:56:01 inside the 8h cutoff.
Median finish
6:03:59
Half of the 425 finishers were still out there at this point.
1:56:01in hand before the 8h cutoff
The start line
98.4%
425 of 432 starters made it; 7 did not.
still moving when a cutoff closed
stopped by choice or by the medics
Organisation stops and disqualifications: 7.
Men and women
Two medians on the same scale. The bars run from the start to the cutoff, so the gap between them is the gap in time.
Men
5:55:47
median finish; average 5:59:59
293 finishers, 69% of the field
Women
6:24:07
median finish; average 6:27:15
132 finishers, 31% of the field
0:28:20 separates the two medians, across 293 men and 132 women.
Finish time by age group
Every track runs from the start to the 8h cutoff, so the empty part of a bar is the time that group's median finisher still had. Men and women are drawn on the same scale.
| Age | Median finish | Median against the cutoff | Finishers |
|---|---|---|---|
| JUN | 4:27:39 | 4 - small sample, read with care | |
| SEN | 5:41:06 | 112 | |
| V1 | 5:44:29 | 77 | |
| V2 | 6:08:34 | 64 | |
| V3 | 6:58:02 | 32 | |
| V4 | 7:40:44 | 4 - small sample, read with care |
| Age | Median finish | Median against the cutoff | Finishers |
|---|---|---|---|
| JUN | - | 1 - too few finishers to publish a time | |
| SEN | 5:54:45 | 56 | |
| V1 | 6:41:53 | 32 | |
| V2 | 6:30:18 | 32 | |
| V3 | 7:09:07 | 10 - small sample, read with care | |
| V4 | - | 1 - too few finishers to publish a time |
Full bar: 20 finishers or more. Tick alone: fewer than 20, too few for a median to say much. The shaded row is the biggest group.
Where the finishers came from
71% of the finishers came from Italy alone.
| Nation | Finishers | Share |
|---|---|---|
| ItalyIT | 30170.8% | |
| FranceFR | 327.5% | |
| BelgiumBE | 276.4% | |
| United KingdomGB | 153.5% | |
| SwitzerlandCH | 71.6% | |
| United StatesUS | 71.6% | |
| NetherlandsNL | 61.4% | |
| SpainES | 40.9% | |
| CzechiaCZ | 30.7% | |
| GermanyDE | 30.7% | |
| DenmarkDK | 30.7% | |
| FinlandFI | 30.7% | |
| HungaryHU | 20.5% | |
| IrelandIE | 20.5% | |
| NorwayNO | 20.5% | |
| BulgariaBG | 10.2% | |
| BrazilBR | 10.2% | |
| CanadaCA | 10.2% | |
| IndiaIN | 10.2% | |
| LithuaniaLT | 10.2% | |
| MalaysiaMY | 10.2% | |
| New ZealandNZ | 10.2% | |
| PeruPE | 10.2% | |
| 13 other nations3 other nations | 204.7%30.7% |
Showing 20 of 23 nations.Showing 23 of 23 nations.
Bar length is against the largest nation. The smallest counts are drawn at a minimum visible width, so their bars are not to scale.
How these numbers were computed
These are times for runners who finished. They exclude everyone who started and did not, so they describe how long finishing took, not how long the race takes. Bands with only a handful of finishers move a lot from one edition to the next.
We plot the median, not the average. A handful of very quick runners drags the average well below the time half the field actually beat, so the median is the honest number to plan against.
Nationality here shows who travels to this race, not who runs it best. That alone is why a host nation tops almost every list.
Computed from the full official results, verifiedNovember 4, 2026 - Official results
Ask the course
Ask GTC30 anything about climbs, pacing, crew or cutoffs.
Answers come from this course's data, your plan and your training.
Which climb should I respect most?
Courmayeur to Mont de La Saxe: +851 m over 5.8 km, straight from the gun. Hike the steep sections at an effort you could hold for hours - the race is decided after this climb, not on it.
Where can my crew meet me?
Mont de La Saxe, km 5.8 - the first of 3 crew points. The next is Rifugio Bonatti, km 12.92. Have them bring warm layers: the course tops out at 2,524 m, in July.
Is 6h a realistic finish for me?
6h would put you in the faster half of 2026 finishers - the median was 6:03:59. It means holding 13:48/km overall.
The assistant answers that once it can see your training.
Build your GTC30 plan and your question is the first thing waiting in the TrailMath Assistant.
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To answer this for you, the Course Assistant uses your training and your race plan.
Example answer
Your long runs peak at 10 km, so the plan builds to 4-hour long runs.
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Aid stations and checkpoints
| Checkpoint | KmMi | Cumulative gain (m)Cumulative gain (ft) | Cumulative loss (m)Cumulative loss (ft) | Cutoff |
|---|---|---|---|---|
| Start - CourmayeurServices not published | 00 | 00 | 00 | - |
| Mont de La SaxeCrew | 5.83.6 | 8512,792 | 69226 | - |
| Rifugio BonattiCrew | 12.928 | 1,1453,757 | 3711,217 | Sat 13:30 |
| Col Sapin | 18.5811.5 | 1,7985,899 | 6302,067 | - |
| CurrùCrew | 20.3112.6 | 1,8456,053 | 1,0743,524 | Sat 15:30 |
| Courmayeur (Finish)Crew | 26.116.2 | 2,0006,562 | 2,0056,578 | Sat 17:00 |
Data is approximate and courses change between editions - always verify against the official race guide. Source: official race guide, verifiedNovember 4, 2026 - Official race website
FAQ
How much elevation gain does Gran Trail Courmayeur - GTC30 have?
Gran Trail Courmayeur - GTC30 has around 2,000 m of cumulative elevation gain and 2,005 m of loss over 26.1 km.
What is the cutoff time for Gran Trail Courmayeur - GTC30?
The overall Gran Trail Courmayeur - GTC30 cutoff is 8 hours, with intermediate time barriers at major checkpoints. Winning times are typically around 3 hours.
How long is Gran Trail Courmayeur - GTC30?
Gran Trail Courmayeur - GTC30 covers approximately 26.1 km, starting in Courmayeur, Valle d'Aosta, Italy.
What is the highest point of Gran Trail Courmayeur - GTC30?
The highest point of Gran Trail Courmayeur - GTC30 is Pas Entre Deux Sauts at 2,524 m.
How many aid stations does Gran Trail Courmayeur - GTC30 have and which allow crew?
The checkpoint table lists 4 major aid points between the start and the finish. Crew access is allowed at Mont de La Saxe (5.8 km), Rifugio Bonatti (12.92 km) and Currù (20.31 km).
Training for this race?
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