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The Most Intense Running Races in Portugal: Ultras, Backyard and 24H Challenges

Paula Veloso
by Paula Veloso
5 months ago

Not every race is about pace.
Some races are about resistance, strategy and the ability to keep moving when fatigue takes over.

Portugal’s endurance calendar includes a growing number of extreme running events designed for athletes who want to test their physical and mental limits. From backyard ultras to 24-hour circuits and long-distance ultramarathons, these are races where consistency matters more than speed.

Here are some of the most intense running races in Portugal you should know.

Backyard Ultra races in Portugal

Backyard ultras are one of the toughest endurance formats.
Runners must complete a 6.7 km loop every hour until only one athlete remains.

There is no fixed finish line. The last runner standing wins.

Upcoming Backyard Ultras

Ficalho Backyard Ultra
📍 Vila Verde de Ficalho, Beja
📅 May 9, 2026

Backyard Trilho dos Cágados
📍 Vila Chã de Ourique, Santarém
📅 May 23, 2026

Bracarvs Backyard Ultra
📍 Vila Verde
📅 June 6, 2026

Lisboa Backyard Ultra
📍 Lisbon
📅 September 26, 2026

These races demand pacing strategy, energy management and mental resilience. Every hour is a new start.

24-hour running circuit in Portugal

In 24-hour races, athletes run continuously for 24 hours, aiming to accumulate the greatest possible distance.

These events are less about speed and more about consistency, fueling and fatigue management.

Circuito Nacional de 24 Horas

Zumub 24h Run – Mem Martins
📍 Sintra
📅 May 9–10, 2026

24H de P
📍 Santa Maria da Feira, Aveiro
📅 September 5–6, 2026

GRIFO 24H
📍 Lisbon
📅 November 14–15, 2026

Athletes can compete individually or in teams and accumulate distance across the circuit.

Ultramarathons in Portugal

Ultramarathons push runners beyond the marathon distance, often requiring hours or even days of continuous effort.

These events require strong aerobic endurance, nutrition strategy and mental toughness.

Upcoming Ultramarathons

Ultra Maratona Caminhos do Tejo
📍 Lisbon → Fátima
📅 June 5, 2026
📏 144 km / 58 km

PT281 Ultramarathon
📍 Belmonte → Proença-a-Nova
📅 July 15, 2026
📏 281 km

Terra de Gigantes
📍 Serra da Estrela → Nazaré
📅 January 14, 2027
📏 303.8 km

These are races designed for experienced endurance athletes looking for extreme challenges.

Find your next endurance challenge

Whether you are preparing for your first ultra or looking for your next extreme endurance test, Portugal offers a growing number of demanding races across different formats.

Explore these and many other races on RaceFinder and start planning your next challenge.

👉 Discover all events and register via RaceFinder

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