Trail run

EstrelAçor Ultra Endurance

EstrelAçor Ultra Endurance took place on Fri, Oct 2, 2026 in Penhas da Saúde, Portugal. The main route is 103 km.

This race has already taken place. See upcoming races

Date: Fri, Oct 2, 2026
Start: Penhas da Saúde 🇵🇹
Distance: 103 km
Climbing: 4,162 m
Level: Open to all

Got a race in mind?

Use IntervalCoach to train for your next event, an AI coach that builds your plan and adapts it every day.

EstrelAçor Ultra Endurance is an extreme mountain trail running event traversing the rugged terrain of Serra da Estrela and Serra do Açor in Portugal.

Official event page

What this race demands

EstrelAçor Ultra Endurance requires sustained mountain trail running over a 103 km distance through rugged terrain.

Extreme Distance

Covering 103 km demands exceptional aerobic capacity, pacing discipline, and resistance to muscular fatigue over many hours of continuous movement.

Mountain Terrain

Traversing the rugged mountain environment of Serra da Estrela and Serra do Açor requires strong technical trail skills and durability on varied, demanding surfaces.

Given the ultra-endurance distance and extended duration, athletes should consume 60 to 90 grams of carbohydrates per hour to maintain energy output.

Frequently asked questions

When is EstrelAçor Ultra Endurance?

EstrelAçor Ultra Endurance took place on Fri, Oct 2, 2026 in Penhas da Saúde, Portugal.

How long is EstrelAçor Ultra Endurance?

The main route is 103 km.

What does EstrelAçor Ultra Endurance demand?

EstrelAçor Ultra Endurance requires sustained mountain trail running over a 103 km distance through rugged terrain.

How much climbing does EstrelAçor Ultra Endurance have?

EstrelAçor Ultra Endurance has 4,162 m of climbing.

Who is EstrelAçor Ultra Endurance for?

EstrelAçor Ultra Endurance is open to all participants.

Similar races

Trail run

Organising this race?