EcoTrail Paris - Trail 20 km - Elevation Profile, Aid Stations and Cutoffs
- Domaine national de Saint-Cloud, Saint-Cloud, France
- 21.8 km13.5 mi
- 550 m1,804 ft D+
- 1 aid station
Map, checkpoints and cutoffs Map · checkpoints · forecast opens Mar 12 Race-day forecast is live
Race-day conditions
Weather and daylight along the course and at all 3 checkpoints, set to the 08:30 start.
- Start
- 08:30
- Daylight at the start
- 06:53-19:04
- Aid stations
- 1
Course profile
Domaine national de Saint-Cloud, Saint-Cloud, FranceObservatoire de Paris - PSL, Meudon, France· point-to-point
Download the official GPX- Distance
- 21.8 km13.5 miFinishes 124 m higher than it startsFinishes 407 ft higher than it starts
- Elevation
- +550 m+1,804 ft-426 m-1,398 ftAbout 25 m of climb per kmAbout 133 ft of climb per mile
- Highest point
- 174 m571 ft
Next editionEst. Sun 21 Mar 2027
Our estimate for Sun 21 Mar 2027. The organiser has not announced the date for this race yet.
- Start
- Winner~1h151h15 after the start
- Median finisher2026 median2h27 after the start
- Cutoff4h50 after the start
EcoTrail Paris - Trail 20 km is a 21.8 km ultra-trail with around 550 m of elevation gain, starting in Domaine national de Saint-Cloud, Saint-Cloud, France. The overall cutoff is 4 hours 50 minutes. That is 25 m of climbing per kilometre. EcoTrail Paris has 7 races, from 10.2 to 120.1 km; this one ranks 6 of 7 by distance and 1 of 7 by climbing per kilometre.
The biggest climb between checkpoints gains around 365 m from Start - Saint-Cloud (Manufacture) (km 0) to Chaville - Stade Jean-Jaurès (km 13.9). The steepest sustained section on the elevation profile averages about 4% over roughly 2.7 km around km 2. The published checkpoint list has no crew-access points - check the official runner guide for assistance rules.
Data is approximate and courses change between editions - always verify against the official race guide.
Other distances at EcoTrail Paris
| Race | Distance | D+ | Cutoff | Next start |
|---|---|---|---|---|
| EcoTrail Paris 120 | 120.1 km74.6 mi | 2,000 m6,562 ft | 21h25 | Mar 20, 2027 (est.) |
| EcoTrail Paris 80 | 81.8 km50.8 mi | 1,320 m4,331 ft | 13h40 | Mar 20, 2027 (est.) |
| EcoTrail Paris 45 | 47.1 km29.3 mi | 780 m2,559 ft | 8h20 | Mar 20, 2027 (est.) |
| EcoTrail Paris 35 | 35 km21.7 mi | 870 m2,854 ft | 4h50 | Mar 21, 2027 (est.) |
| EcoTrail Paris 30 | 29.6 km18.4 mi | 410 m1,345 ft | 5h50 | Mar 20, 2027 (est.) |
| EcoTrail Paris 20 (this page) | 21.8 km13.5 mi | 550 m1,804 ft | 4h50 | Mar 21, 2027 (est.) |
| EcoTrail Paris 10 | 10.2 km6.3 mi | 170 m558 ft | 2h05 | Mar 21, 2027 (est.) |
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
29 effort-km
Below 50 effort-km the model quotes no reference time.
Distance + gain ÷ 100 + loss ÷ 200, beside ITRA's gain-only km-effort. Model TM1.0.
How TrailMath works →UTMB Index category
20K
27 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
+365 m+1,198 ft
Saint-Cloud (Manufacture) → Chaville - Stade Jean-Jaurès · km 0–13.9mi 0–8.6
The largest gain between two checkpoints, not one continuous climb.
Biggest descent section
−290 m−951 ft
Saint-Cloud (Manufacture) → Chaville - Stade Jean-Jaurès · km 0–13.9mi 0–8.6
The largest loss between two checkpoints. ITRA's km-effort ignores descent; TrailMath counts it: 29 km-effort.
Open in GPX Explorer →Share this race
Cards sized for Instagram and Strava.
EcoTrail Paris - Trail 20 km · 2026
Finish times, 2026 edition
2,765 runners started. 2,742 came back. Half of them took longer than 2:26:32.That left the median finisher 2:23:16 inside the 4h50 cutoff.
Median finish
2:26:32
Half of the 2,742 finishers were still out there at this point.
2:23:16in hand before the 4h50 cutoff
The start line
99.2%
2,742 of 2,765 starters made it; 23 did not.
still moving when a cutoff closed
stopped by choice or by the medics
Organisation stops and disqualifications: 8.
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
2:18:02
median finish; average 2:19:51
1,548 finishers, 56% of the field
Women
2:35:48
median finish; average 2:37:08
1,194 finishers, 44% of the field
0:17:46 separates the two medians, across 1,548 men and 1,194 women.
Finish time by age group
Every track runs from the start to the 4h50 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 |
|---|---|---|---|
| 20-34 | 2:10:41 | 663 | |
| 35-39 | 2:15:46 | 210 | |
| 40-44 | 2:20:23 | 189 | |
| 45-49 | 2:22:27 | 158 | |
| 50-54 | 2:24:33 | 120 | |
| 55-59 | 2:30:19 | 65 | |
| 60-64 | 2:41:42 | 42 | |
| 65-69 | 2:33:57 | 16 - small sample, read with care | |
| 70-74 | 2:57:21 | 5 - small sample, read with care | |
| Unknown | 2:25:14 | 80 |
| Age | Median finish | Median against the cutoff | Finishers |
|---|---|---|---|
| 20-34 | 2:31:07 | 571 | |
| 35-39 | 2:36:31 | 165 | |
| 40-44 | 2:39:42 | 150 | |
| 45-49 | 2:40:45 | 120 | |
| 50-54 | 2:43:11 | 57 | |
| 55-59 | 2:47:51 | 48 | |
| 60-64 | 2:45:55 | 13 - small sample, read with care | |
| 65-69 | 2:48:51 | 5 - small sample, read with care | |
| 70-74 | 3:10:34 | 3 - small sample, read with care | |
| Unknown | 2:37:59 | 62 |
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
90% of the finishers came from France alone.
| Nation | Finishers | Share |
|---|---|---|
| FranceFR | 2,46689.9% | |
| ItalyIT | 160.6% | |
| United KingdomGB | 130.5% | |
| SpainES | 100.4% | |
| BelgiumBE | 60.2% | |
| ChinaCN | 60.2% | |
| GermanyDE | 60.2% | |
| BrazilBR | 50.2% | |
| MoroccoMA | 50.2% | |
| NorwayNO | 50.2% | |
| PortugalPT | 40.1% | |
| United StatesUS | 40.1% | |
| ArgentinaAR | 30.1% | |
| SwitzerlandCH | 30.1% | |
| NetherlandsNL | 30.1% | |
| PolandPL | 30.1% | |
| RomaniaRO | 30.1% | |
| AustraliaAU | 20.1% | |
| AlgeriaDZ | 20.1% | |
| EcuadorEC | 20.1% | |
| EgyptEG | 20.1% | |
| GreeceGR | 20.1% | |
| HungaryHU | 20.1% | |
| JapanJP | 20.1% | |
| RussiaRU | 20.1% | |
| SwedenSE | 20.1% | |
| AfghanistanAF | 10.0% | |
| AlbaniaAL | 10.0% | |
| AustriaAT | 10.0% | |
| ChileCL | 10.0% | |
| ColombiaCO | 10.0% | |
| CzechiaCZ | 10.0% | |
| IrelandIE | 10.0% | |
| IndiaIN | 10.0% | |
| LebanonLB | 10.0% | |
| LuxembourgLU | 10.0% | |
| MexicoMX | 10.0% | |
| PeruPE | 10.0% | |
| ThailandTH | 10.0% | |
| TürkiyeTR | 10.0% | |
| UkraineUA | 10.0% | |
| 31 other nations21 other nations11 other nations1 other nationAll other nations | 2047.4%1756.4%1595.8%1495.4%1485.4% |
Showing 20 of 41 nations.Showing 30 of 41 nations.Showing 40 of 41 nations.Showing 41 of 41 nations.Showing 41 of 41 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 7, 2026 - Official results
Ask the course
Ask EcoTrail Paris 20 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?
Saint-Cloud (Manufacture) to Chaville - Stade Jean-Jaurès: +365 m over 13.9 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?
Chaville - Stade Jean-Jaurès, km 13.9 - your first checkpoint, and no crew can meet you there or further on: the organiser lists no crew access on EcoTrail Paris 20.
Is 2h a realistic finish for me?
2h would put you in the faster half of 2026 finishers - the median was 2:26:32. It means holding 5:30/km overall.
The assistant answers that once it can see your training.
Build your EcoTrail Paris 20 plan and your question is the first thing waiting in the TrailMath Assistant.
Build my EcoTrail Paris 20 planYearly has a 7-day free trial for eligible customers, or take a Race Pass for this race.
To answer this for you, the Course Assistant uses your training and your race plan.
Example answer
Your long runs peak at 5 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 - Saint-Cloud (Manufacture) | 00 | 00 | 00 | - |
| Chaville - Stade Jean-Jaurès | 13.98.6 | 3651,198 | 290951 | Sun 11:40 |
| Finish - Observatoire de Meudon | 21.813.5 | 5501,804 | 4261,398 | Sun 13:20 |
Data is approximate and courses change between editions - always verify against the official race guide. Source: official race guide, verifiedNovember 7, 2026 - Official race website
FAQ
How much elevation gain does EcoTrail Paris - Trail 20 km have?
EcoTrail Paris - Trail 20 km has around 550 m of cumulative elevation gain and 426 m of loss over 21.8 km.
What is the cutoff time for EcoTrail Paris - Trail 20 km?
The overall EcoTrail Paris - Trail 20 km cutoff is 4 hours 50 minutes, with intermediate time barriers at major checkpoints. Winning times are typically around 1 hours.
How long is EcoTrail Paris - Trail 20 km?
EcoTrail Paris - Trail 20 km covers approximately 21.8 km, starting in Domaine national de Saint-Cloud, Saint-Cloud, France.
How many aid stations does EcoTrail Paris - Trail 20 km have and which allow crew?
The checkpoint table lists 1 major aid points between the start and the finish. Personal crew assistance is not part of the published checkpoint data - check the official runner guide.
Training for this race?
TrailMath builds periodized trail training plans around your goal race.
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