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Saturday, October 31, 2026 – Sunday, November 1, 2026
Kolitza Balmatrail is a mountain running weekend in Balmaseda (Bizkaia), in the Enkarterri, organised by the Eutsi Balmatrail club around Kolitza, the town's mountain. The Récord del Kolitza is a 12 km individual time trial (720 m of climbing) from Plaza San Severino up to the hermitage on the summit and back; the 26 km mountain race (1,500 m) loops over Garbea, Kolitza, Sabugal and Cerro del Castillo on technical trails and grassy slopes, and the 13 km race (700 m) over Garbea and Cerro del Castillo. There are also a 21 km mountain walk, a family walk and races for children.
Pick your distance to see how long to train, how to fuel and the gear that suits this course.
12 weeks of specific training
Build up to 3-hour long runs with climbing and practise running downhill.
Add two short strength sessions a week (legs, hips and core): they protect you on the descents.
See the week-by-week training planTake 30–60 g of carbs per hour from the first hour and drink to thirst with electrolytes.
Technical terrain: train on rocky trails and steep descents, and wear shoes with grip and protection.
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Your pace leg by leg, the food where you'll need it and a wristband to print, on this race's profile.
Example · 25 km trail with two aid stations
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Kolitza Balmatrail 2026 takes place in Balmaseda, Enkarterri, Bizkaia, Basque Country, Spain: October 31 – November 1, 2026. Add it to your calendar from the top of this page so you don’t miss it.
Kolitza Balmatrail takes place in Balmaseda, Enkarterri, Bizkaia, Basque Country, Spain. There are 8 other trail races within 250 km, shown on the map, if you want to combine them in one trip.
Kolitza Balmatrail has 3 distances: 12K, 13K, and 26K. The longest is the 26K.
No: Kolitza Balmatrail is an independent race, not part of a circuit such as the UTMB World Series or the Golden Trail Series.
For the 26K, plan around 12 weeks of specific training if you already run regularly. For the 12K, about 8 weeks are enough. Build up long runs with climbing and add two short strength sessions a week.
It is a technical mountain race: expect rocky trails and steep descents, so train on similar terrain.
For its technical terrain, choose shoes with deep lugs and good protection. Good options: NNormal Kjerag 2, Asics METAFUJI TRAIL 2, and Adidas Terrex Agravic TT. You will find them, and the rest of the gear, in “How to prepare” below.
Registration is on the official website (kolitzabalmatrail.com). Popular races sell out, so check the dates early, and mark it as “I want to register” at the top of this page to keep it in your races.
Look for accommodation in or near Balmaseda. The accommodation map on this page shows hotels and apartments around the race, with prices for your dates.
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