Grande Trail Serra D’Arga takes place on Fri, Oct 2, 2026 in Caminha, Portugal. The main route is 100 km.
- Date
- Fri, Oct 2, 2026
- Start
- Caminha 🇵🇹
- Distance
- 100 km
- Climbing
- 4,594 m
- Level
- Open to all
O Grande Trail da Serra D'Arga é um evento de trail running que decorre na imponente Serra d'Arga, atravessando trilhos de montanha, vales profundos e aldeias tradicionais do norte de Portugal.
Official event pageWhat this race demands
Grande Trail Serra D’Arga demands sustained muscular durability and climbing efficiency across 100 kilometers and 4594 meters of elevation gain in the mountains of northern Portugal.
Climbing volume
Accumulating nearly 4600 meters of elevation over 100 kilometers requires consistent ascending strength and pacing discipline on steep mountain tracks and deep valleys.
Eccentric durability
Navigating extensive descents across technical mountain terrain places high mechanical stress on the quadriceps and stabilizing muscles over a protracted duration.
Extended endurance
An ultra-distance trail event spanning deep into mountainous terrain demands robust aerobic capacity and late-race fatigue resistance.
A sustained intake of 60 to 90 grams of carbohydrates per hour is necessary to support energy availability over the projected multi-hour duration.
Estimated finish times
Estimates by level, not promises. Your own number depends on your fitness on the day.
Your road to race day
Race day at Grande Trail Serra D’Arga is 6 weeks away. This is how a coach divides that time. The first phase starts now.
01Peak3 weeks · Aug 22, 2026 – Sep 11, 2026
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
02Taper2 weeks · Sep 12, 2026 – Sep 25, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
03Race week1 week · Sep 26, 2026 – Oct 2, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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