Photo: Frank Vincentz · CC BY-SA 3.0 · Wikimedia CommonsTrail RunningUTMB Index Races
Trail des Châtaignes
Cormeilles-en-Parisis, France
November 14, 2026 to November 15, 2026Date confirmed
48 km32 km16 km14 km+1
Nature & Off-RoadMountain+4
FRTrail Running · Val d'Oise · 25 Events · 133 Races
Trail Running in Val d'Oise
25 verified events with 133 individual races (10 confirmed dates) in Val d'Oise complete with route maps and elevation profiles.
Events2510 confirmed dates
Competitions133Races & courses
Distances0.5 - 162 kmCourse distance range
Max. Elevation Gain+4,900 m D+Course elevation profile
Selected Events
Featured Events & Highlights
Photo: Frank Vincentz · CC BY-SA 3.0 · Wikimedia Commons
Photo: Daniel VILLAFRUELA · CC BY-SA 4.0 · Wikimedia CommonsTrail RunningUTMB Index Races
Trail Les 40 Bosses
Saint-Leu-la-Forêt, France
December 5, 2026 to December 6, 2026Date confirmed
120 km75 km45 km20 km+1
ForestNature & Off-Road+5
Photo: Jorge Jaramillo · CC BY-SA 4.0 · Wikimedia CommonsTrail Running
Essec Night Run
Cergy, France
February 19, 2027Date confirmed
16 km9 km
Night RunLakes & Ponds+5
Photo: Jonathan Beech · CC BY-SA 4.0 · Wikimedia CommonsTrail Running
2T2M
Montmorency, France
March 27, 2027 to March 28, 2027Date confirmed
83.9 km62.5 km44.9 km23.1 km+1
Night RunSeaside & Coast+6
Photo: Daniel VILLAFRUELA · CC BY-SA 4.0 · Wikimedia CommonsTrail Running
Paris-Backyard-Ultra - Cergy
Cergy, France
April 30, 2027Date confirmed
6.71 km
Nature & Off-RoadForest
Photo: Rémih · CC BY-SA 4.0 · Wikimedia CommonsTrail RunningWalking & Hiking
Eragny Trail Tour
Éragny, France
Date to be announcedDate TBA
12 km6 km3 km2.4 km+2
Kids & Youth RacesCity Run+3
Photo: Jonathan Beech · CC BY-SA 4.0 · Wikimedia CommonsWalking & HikingTrail Running
Trail De L'Isle Adam
L'Isle-Adam, France
Date to be announcedDate TBA
43 km30 km26 km13 km+3
ForestCity Run+4
Photo: Daniel VILLAFRUELA · CC BY-SA 4.0 · Wikimedia CommonsTrail Running
Festival des 3 forêts
Mériel, France
Date to be announcedDate TBA
162 km100 km71 km65 km+3
Public ParkNature & Off-Road+5
Dates & Schedule
Race Calendar
November 2026
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Nov 14, 2026 - Nov 15, 2026 | Trail des Châtaignes | Cormeilles-en-Parisis, Île-de-France, FR | Trail Running | 48 km32 km16 km14 km |
December 2026
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Dec 5, 2026 - Dec 6, 2026 | Trail Les 40 Bosses | Saint-Leu-la-Forêt, Île-de-France, FR | Trail Running | 120 km75 km45 km20 km |
February 2027
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Feb 19, 2027 | Essec Night Run | Cergy, Île-de-France, FR | Trail Running | 16 km9 km |
March 2027
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Mar 27, 2027 - Mar 28, 2027 | 2T2M | Montmorency, Île-de-France, FR | Trail Running | 83.9 km62.5 km44.9 km23.1 km |
April 2027
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Apr 30, 2027 | Paris-Backyard-Ultra - Cergy | Cergy, Île-de-France, FR | Trail Running | 6.71 km |
Date to be announced
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Date to be announced | Eragny Trail Tour | Éragny, Île-de-France, FR | Trail RunningWalking & Hiking | 12 km6 km3 km2.4 km |
| Date to be announced | Trail De L'Isle Adam | L'Isle-Adam, Île-de-France, FR | Walking & HikingTrail Running | 43 km30 km26 km13 km |
| Date to be announced | Festival des 3 forêts | Mériel, Île-de-France, FR | Trail Running | 162 km100 km71 km65 km |
| Date to be announced | The DNF | Andilly, Île-de-France, FR | Trail RunningRoad Running | 7 km12 h6 h3 h |
| Date to be announced | Trail of the Seine Balconies | La Roche-Guyon, Île-de-France, FR | Trail RunningOther Disciplines | 55 km35 km15 km10 km |
| Date to be announced | MaxiCross | Bouffémont, Île-de-France, FR | Trail RunningWalking & Hiking | 42 km27 km20 km10 km |
| Date to be announced | Nesles la foulée | Nesles-la-Vallée, Île-de-France, FR | Trail Running | 22 km12.5 km6.5 km1.5 km |
Events by Month
Overview & Route Character
Off-road running on singletrack, forest paths, and alpine ridges, spanning short discovery trails to high-mountain ultra-trails. Trail running is defined by elevation gain, technical terrain, and natural landscapes across forest singletrack, coastal cliffs, and mountain passes. In this Trail Running in Val d'Oise directory, RunningCompass curates 25 events comprising 133 individual races, including 10 events with confirmed upcoming dates.
Courses span distances ranging from 0.5 km to 162 km and elevation gains up to +4,900 m. Key host locations include Cormeilles-en-Parisis, Saint-Leu-la-Forêt, Cergy, Montmorency. Notable events in this selection include Trail des Châtaignes, Trail Les 40 Bosses, Essec Night Run.
Questions & Answers
Frequently asked questions (FAQ)
How many events and races are listed under Trail Running in Val d'Oise?
This overview currently includes 25 verified events featuring 133 individual races. Of these, 10 events have confirmed upcoming dates on the calendar, while 15 events await next edition date confirmation from the organizer.
What race distances and elevation profiles are included in Trail Running in Val d'Oise?
Races in this selection span distances of 0.5 km to 162 km. The most demanding courses reach up to +4,900 m of positive elevation gain. Featured disciplines include Trail Running, Walking & Hiking, Road Running.
Which host cities and flagship events stand out in Trail Running in Val d'Oise?
Top host locations include Cormeilles-en-Parisis, Saint-Leu-la-Forêt, Cergy, Montmorency, Éragny. Representative events in the catalog include Trail des Châtaignes, Trail Les 40 Bosses, Essec Night Run, 2T2M. Off-road running on singletrack, forest paths, and alpine ridges, spanning short discovery trails to high-mountain ultra-trails.
How can I inspect route maps, elevation charts, and date filters for Trail Running in Val d'Oise?
Every event profile provides an interactive route map, a detailed elevation chart across all 133 races, and a GPX track download. You can also switch directly to the interactive map explorer to filter by date range and distance.