Trail RunningUTMB Index Races

Trail des Châtaignes

Trail Running covering 11 km to 48 km with up to 1,900 m D+ in Cormeilles-en-Parisis (Île-de-France, France)

LocationCormeilles-en-Parisis, Île-de-France, FranceShow on map(48.9834° N, 2.1964° E)
Date & StatusNovember 14, 2026 to November 15, 2026Date confirmed
Elevation gainUp to +1,900 m

Trail des Châtaignes is an endurance sporting event in Cormeilles-en-Parisis, Île-de-France, FR focused on Trail Running. It is part of UTMB Index Races. Key features include Nature & Off-Road, Mountain, Forest, Seaside & Coast.

The race program comprises 5 competitions, including Les Buttes (48 km, +1,900 m D+), Les Châtaignes (32 km, +1,200 m D+), La nocturne (16 km, +600 m D+), Le Fort (14 km, +450 m D+), and Le Cani (11 km, +400 m D+). The next edition is officially confirmed from November 14, 2026 to November 15, 2026. Official race regulations, course details, and registration information are provided on the organizer's website (trail-des-chataignes.com).

Official website
Trail des Châtaignes in Cormeilles-en-Parisis (Work: "Malta - Sliema - Tigné Point - outer trail 05 ies", Photo: Frank Vincentz, License: CC BY-SA 3.0, Source: Wikimedia Commons)
"Malta - Sliema - Tigné Point - outer trail 05 ies" · Photo: Frank Vincentz · Wikimedia CommonsCC BY-SA 3.0
Cropped to 16:9 (960 × 540 px), WebP · Shared under the same license

Event characteristics

Nature & Off-RoadMountainForestSeaside & CoastIslandNight Run

Races & distances (5)

CompetitionDisciplineDistanceElevation gainAltitude rangeCourse typeCourse & profile
Les ButtesTrail Running48 km+1,900 m104 m - 902 mLoop courseRoute & profile
Les ChâtaignesTrail Running32 km+1,200 m107 m - 611 mLoop courseRoute & profile
La nocturneTrail Running16 km+600 m110 m - 362 mLoop courseRoute & profile
Le FortTrail Running14 km+450 m113 m - 302 mLoop courseRoute & profile
Le CaniTrail Running11 km+400 m116 m - 284 mLoop courseRoute & profile
Course & Elevation Telemetry

Course route & map

Distance
48 km
Elevation gain
+1,900 m D+
Elevation loss
-1,900 m D-
Altitude range
104 m - 902 m
Gradient (Avg / Max)
7.9 % / 14.2 %
Course format
Loop course
48 km+1,900 m D+
Start (S)Finish (F)
N10203040FS48.9834° N, 2.1964° E

Elevation profile & course telemetry

Altitude from 104 m to 902 m above sea level (+1,900 m D+, -1,900 m D-)

Peak: 902 m·at 27.2 km·Ø 7.9 %
104 m370 m636 m902 m0 km9.6 km19.2 km28.8 km38.4 km48 km902 m
Event Information & Answers

Frequently asked questions (FAQ)

When and where does Trail des Châtaignes take place?

Trail des Châtaignes takes place in Cormeilles-en-Parisis, Île-de-France, FR (start area at coordinates 48.9834° N, 2.1964° E). The next edition is officially confirmed from November 14, 2026 to November 15, 2026.

What races and distances are offered at Trail des Châtaignes?

The race program comprises 5 competitions, including Les Buttes (48 km, +1,900 m D+), Les Châtaignes (32 km, +1,200 m D+), La nocturne (16 km, +600 m D+), Le Fort (14 km, +450 m D+), and Le Cani (11 km, +400 m D+). The competitions belong to Trail Running.

What is the course layout and elevation profile for Trail des Châtaignes?

The main competition (Les Buttes over 48 km) is designed as a loop course featuring +1,900 m of elevation gain and -1,900 m of elevation loss, ranging between 104 m and 902 m above sea level. An interactive course map with route visualization, elevation profile, and GPX export is available in the course section on this page.

Where can I find registration and official race rules for Trail des Châtaignes?

Official race regulations, course details, and registration information are provided on the organizer's website (trail-des-chataignes.com).