Trail Chrea takes place on Sat, Dec 12, 2026 in Chréa National Park, Blida, Algeria. The main route is 25 km.
- Date
- Sat, Dec 12, 2026
- Start
- Chréa National Park, Blida 🇩🇿
- Distance
- 25 km
- Level
- Open to all
Your 9-week plan to Trail Chrea
The Build phase starts this week. Built around your fitness and adjusted every day as your form changes; attach the course and it prepares for the climbs too.
Build my planFree to start · No credit card
Mountain trail race in Chréa National Park in the Blida Atlas, organised by the Gravir association, with a 40 km ultra trail, a 25 km trail challenge and a 14 km discovery trail.
What this race demands
Trail Chrea demands sustained endurance over 25 km on a mountain trail. Runners must manage effort across mountain terrain, with the exact climbing load unknown because elevation gain is not stated.
Endurance
A 25 km trail requires sustained aerobic effort beyond a short-distance race. Runners need to pace conservatively enough to maintain that effort through the finish.
Mountain-terrain strength
The event is described as a mountain trail in Chréa National Park. Runners should be prepared to manage effort as terrain and gradients vary, though the course’s elevation gain is not stated.
Winter preparation
The race takes place in December in the Blida Atlas. Prepare for a winter-season mountain outing, without assuming specific weather or trail conditions.
If your expected finish is over about 2.5 hours, aim for roughly 60–90 g of carbohydrate per hour.
Your road to race day
Race day at Trail Chrea is 9 weeks away. This is how a coach divides that time. The first phase starts now.
01Build3 weeks · Oct 11, 2026 – Oct 31, 2026
Progressive overload: training load climbs in waves, with harder weeks stacked on the base and planned recovery weeks that let the gains land.
02Peak3 weeks · Nov 1, 2026 – Nov 21, 2026
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
03Taper2 weeks · Nov 22, 2026 – Dec 5, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
04Race week1 week · Dec 6, 2026 – Dec 12, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
Frequently asked questions
When is Trail Chrea?
Trail Chrea takes place on Sat, Dec 12, 2026 in Chréa National Park, Blida, Algeria.
How long is Trail Chrea?
The main route is 25 km.
What does Trail Chrea demand?
Trail Chrea demands sustained endurance over 25 km on a mountain trail. Runners must manage effort across mountain terrain, with the exact climbing load unknown because elevation gain is not stated.
Who is Trail Chrea for?
Trail Chrea is open to all participants.
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