Ossa Route Marathon 2026

The Intermunicipal Cup 3H Resistance MTB is a mountain bike endurance race series consisting of six events held in various locations including Alenquer, Loures, Mafra, Oeiras, Amadora, and Lisbon. The races take place in 2025 and 2026, with the first event scheduled for May 31, 2026.

Participants can compete in the 3-hour resistance race or in juvenile MTB races held on the same day. The event is open to licensed and non-licensed athletes aged 5 and above, with categories for all ages and genders, including e-Bikes. The race features circuits approximately 4 to 7 km for the 3-hour race and 1 to 3 km for juvenile races, with specific distances for younger categories.

The competition is part of an intermunicipal series with a points system and prizes for top finishers in each category and overall. The event promotes competitive amateur cycling with a structured format including start boxes and timed laps, supported by technical and medical assistance.

The Intermunicipal Cup 3H Resistance MTB is a mountain bike endurance race held in multiple locations including Alenquer, Loures, Mafra, Oeiras, Amadora, and Lisbon. The 2026 edition features six races, with the first event scheduled for May 31, 2026, in Alenquer.

The race offers a 3-hour resistance format with courses approximately 4 to 7 km long, alongside juvenile MTB races with shorter circuits from 500 meters to 3 km depending on age categories. Participants include licensed competitive athletes and non-federated riders aged 5 years and older.

The event is part of a series with point-based classifications and prizes for top finishers in various categories, including electric bikes. The race atmosphere is competitive amateur with organized team and individual participation, supported by multiple cycling clubs and municipalities.

The I BTT Experience “Trilhos da Transumância” is a non-competitive mountain bike event taking place on May 31, 2026, in Alpedrinha, Castelo Branco. It offers two route options: a 30 km course with 650 meters of elevation gain and a 55 km course with 1000 meters of elevation gain, both featuring rural paths, trails, and secondary roads.

The event is open to all interested participants without the need for a federation license. It emphasizes promoting social interaction, sports practice, and showcasing the natural landscapes and heritage of Alpedrinha and its surroundings. The event atmosphere is friendly and inclusive, focusing on enjoyment rather than competition.

The 2nd Maratona BTT Terras de Santa Clara is a mountain bike marathon event taking place on May 31, 2026, at Campo de Jogos José Cardador in Santa Clara do Louredo, Beja. The race offers two distances: 45 km and 60 km.

Open to all cyclists with a registration fee of 18 euros, the event limits participation to 250 athletes. Participants must wear helmets and are required to choose their race distance at registration, with no changes allowed on race day.

The course features natural landscapes with notable flora and fauna, encouraging environmental preservation. The event atmosphere includes support vehicles, mechanical assistance, and post-race refreshments, making it a well-organized and engaging mountain biking experience.