Festival des 3 forêts
11–12 September 2027 · Mériel (Val-d'Oise)
The races
- 11 SeptemberTrail 71 km71 km
- 11 SeptemberTrail 100 km100 km
- 11 SeptemberTrail 162 km162 km
- 12 SeptemberTrail 13 km13 km
- 12 SeptemberTrail 25 km25 km
- 12 SeptemberTrail 45 km45 km
- 12 SeptemberTrail 65 km65 km
Your preparation for Festival des 3 forêts
You have 45 weeks left.
You can start today.
45 km trail
-
I'm starting from scratch
3 runs per week
Your longest run: 2 h 55
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I've been running for less than a year
3 runs per week
Your longest run: 2 h 55
-
I've been running for more than a year
4 runs per week
Your longest run: 2 h 41
25 km trail
-
I'm starting from scratch
3 runs per week
Your longest run: 2 h 51
-
I've been running for less than a year
3 runs per week
Your longest run: 2 h 51
-
I've been running for more than a year
4 runs per week
Your longest run: 2 h 18
13 km trail
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I'm starting from scratch
3 runs per week
Your longest run: 1 h 08
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I've been running for less than a year
3 runs per week
Your longest run: 1 h 09
-
I've been running for more than a year
4 runs per week
Your longest run: 57 min
How to prepare for a trail race
Your preparation
You have 45 weeks left.
Other upcoming races · Val-d'Oise
- Endurance Backyard 30–31 October 2026 · Taverny
- La DNF 31 October – 1 November 2026 · Andilly
- Raid'frayant 4 November 2026 · Cergy
- Lions Club et MDN95 : Course contre le Diabète 8 November 2026 · Cergy
- Kid cross EA / Eki cross relais PO à MI et CA à MA 11 November 2026 · Saint Brice sous Foret
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