Altigraph · Race profiles · Salomon EcoTrail Paris, 30 km trail 2027
Salomon EcoTrail Paris, 30 km trail 2027: elevation profile, climbs and gradients
Trail from Meudon to Paris on 20 March 2027: 29.6 km with 411 m of climbing and 525 m of descent, according to the course published by the organiser. Here is where it climbs, how steep, and where the race is decided.
The profile
The three numbers to read first
- 13.8 metres climbed per km. Rolling course: a few real climbs, plan them.
- Where the climbing sits. 4 climbs in all. The biggest runs from km 6.3 to km 7.6: 1.39 km at +6.1 % on average (+85 m, peak +17.3 %). The last real climb tops out at km 19.0, 10.78 km from the finish: that is where you can finally commit. The climbing is all in the first two thirds: the last 10 km are flat, that is where the time lost on the climbs comes back.
- The steepest 100 m. The steepest 100 m are at km 5.0, at +17.8 %: steep enough that a brisk walk may be as fast as a run there.
Open this course in Altigraph. The interactive version: hover the profile, see the map coloured by gradient, download or share the image.
The sections that matter
Sections longer than 200 m at 2 % or more, or with at least 10 m of elevation change. Everything else is flat or false flat. Max = the steepest 100 m of the section.
| Where | What | Length | Altitude | Avg | Max |
|---|---|---|---|---|---|
| km 1.1 → 1.7155 → 174 m | climb | 620 m | 155 → 174 m | +3.1 % | +6.5 % |
| km 3.8 → 4.7171 → 110 m | descent | 870 m | 171 → 110 m | -7.0 % | -14.9 % |
| km 4.7 → 5.2110 → 168 m | climb | 500 m | 110 → 168 m | +11.5 % | +17.8 % |
| km 5.2 → 6.2168 → 76 m | descent | 1,050 m | 168 → 76 m | -8.8 % | -16.0 % |
| km 6.3 → 7.676 → 161 m | climb | 1,390 m | 76 → 161 m | +6.1 % | +17.3 % |
| km 7.8 → 8.0162 → 153 m | descent | 220 m | 162 → 153 m | -4.2 % | -6.0 % |
| km 8.0 → 8.3153 → 167 m | climb | 280 m | 153 → 167 m | +5.2 % | +9.4 % |
| km 8.3 → 8.9167 → 124 m | descent | 590 m | 167 → 124 m | -7.3 % | -17.7 % |
| km 8.9 → 10.6124 → 133 m | false flat | 1,650 m | 124 → 133 m | +0.6 % | -3.4 % |
| km 10.6 → 10.8134 → 138 m | climb | 210 m | 134 → 138 m | +2.2 % | +2.5 % |
| km 11.3 → 11.8136 → 175 m | climb | 510 m | 136 → 175 m | +7.7 % | +13.0 % |
| km 12.7 → 14.2169 → 124 m | descent | 1,480 m | 169 → 124 m | -3.0 % | -14.2 % |
| km 14.2 → 14.8125 → 143 m | climb | 600 m | 125 → 143 m | +3.1 % | +5.9 % |
| km 15.0 → 15.9144 → 124 m | descent | 900 m | 144 → 124 m | -2.2 % | -7.2 % |
| km 15.9 → 16.1124 → 131 m | climb | 200 m | 124 → 131 m | +3.4 % | +4.7 % |
| km 16.1 → 17.3130 → 98 m | descent | 1,180 m | 130 → 98 m | -2.7 % | -5.5 % |
| km 17.6 → 18.5104 → 61 m | descent | 880 m | 104 → 61 m | -4.8 % | -11.2 % |
| km 18.5 → 19.061 → 100 m | climb | 500 m | 61 → 100 m | +7.8 % | +15.1 % |
| km 19.0 → 20.3100 → 30 m | descent | 1,290 m | 100 → 30 m | -5.4 % | -8.2 % |
| km 21.0 → 21.237 → 26 m | descent | 200 m | 37 → 26 m | -5.7 % | -8.8 % |
| km 21.2 → 21.426 → 32 m | climb | 200 m | 26 → 32 m | +2.9 % | +4.3 % |
The steepest stretches
-17.7 % · at km 8.4steepest descent over 100 m
-13.9 % · at km 5.4steepest descent over 250 m
-10.8 % · at km 5.3steepest descent over 500 m
-9.1 % · at km 5.2steepest descent over 1000 m
Where the numbers come from
The course is the public Strava route published by the organiser (« Salomon EcoTrail Paris Printemps 2027 - Trail 30km... »), read without an account through its public embed. Altigraph shows the computed profile and links to the original route; the track itself is not redistributed.
The organiser quotes 500 m of climbing; Altigraph computes 411 m after smoothing the altitude over 50 m, which removes GPS jitter (18 % less here). Adding up every rise of the same track without any smoothing gives 490 m: that raw sum is usually the figure race brochures quote. Both figures describe the same course: the smoothed one is the better estimate of what your legs will feel, the raw one counts every bump. The organiser's figure.
Method: the track is resampled every 10 m, altitude is smoothed over 50 m either side, the local gradient is measured over 100 m, then the course is cut into climbs (over 1.5 %), descents (under -1.5 %) and flat parts. The thresholds are the same as on the home page.
Open this course in Altigraph. The interactive version: hover the profile, see the map coloured by gradient, download or share the image.
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Profile computed on 21 September 2026 from the organiser's course. A course can change until race day: the organiser's page is the reference.