Isasa Trail Xtrem – Maratón takes place on Sat, Mar 6, 2027 in Arnedo, Spain. The main route is 44.5 km.
- Date
- Sat, Mar 6, 2027
- Start
- Arnedo 🇪🇸
- Distance
- 44.5 km
- Climbing
- 2,500 m
- Level
- Open to all
Your 18-week plan to Isasa Trail Xtrem – Maratón
The Base 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.
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La maratón de la Atom Isasa Trail Xtrem recorre 44,5 km con 2.500 m de desnivel positivo por la Sierra de Isasa.
Your road to race day
Race day at Isasa Trail Xtrem – Maratón is 18 weeks away. This is how a coach divides that time. The first phase starts now.
01Base6 weeks · Nov 1, 2026 – Dec 12, 2026
Aerobic foundation: mostly steady endurance work that grows the aerobic engine and the durability the later phases stand on.
02Build6 weeks · Dec 13, 2026 – Jan 23, 2027
Progressive overload: training load climbs in waves, with harder weeks stacked on the base and planned recovery weeks that let the gains land.
03Peak3 weeks · Jan 24, 2027 – Feb 13, 2027
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
04Taper2 weeks · Feb 14, 2027 – Feb 27, 2027
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
05Race week1 week · Feb 28, 2027 – Mar 6, 2027
Openers, rest and logistics. The work is done; the job now is arriving fresh.
Frequently asked questions
When is Isasa Trail Xtrem – Maratón?
Isasa Trail Xtrem – Maratón takes place on Sat, Mar 6, 2027 in Arnedo, Spain.
How long is Isasa Trail Xtrem – Maratón?
The main route is 44.5 km.
How much climbing does Isasa Trail Xtrem – Maratón have?
Isasa Trail Xtrem – Maratón has 2,500 m of climbing.
Who is Isasa Trail Xtrem – Maratón for?
Isasa Trail Xtrem – Maratón is open to all participants.
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