BUTS Iruñea-Donostia
Trail Running covering 70.9 km to 119.1 km with up to 6,610 m D+ in Pamplona (Navarre, Spain)
BUTS Iruñea-Donostia is an endurance sporting event in Pamplona, Navarra, ES focused on Trail Running. It is part of UTMB Index Races. Key features include Nature & Off-Road, Mountain, High Altitude, Multi-Day.
The race program comprises 2 competitions, including Buts - Iruñea/Donostia (119.1 km, +6,610 m D+), and Buts Txiki - Lekumberri/Donostia (70.9 km, +3,550 m D+). The exact date for the next edition is currently open and will be announced by the organizer. Official race regulations, course details, and registration information are provided on the organizer's website (basqueultratrail.com).

Event characteristics
Races & distances (2)
| Competition | Discipline | Distance | Elevation gain | Altitude range | Course type | Course & profile |
|---|---|---|---|---|---|---|
| Buts - Iruñea/Donostia | Trail Running | 119.1 km | +6,610 m | 1,150 m - 3,926 m | Loop course | Route & profile |
| Buts Txiki - Lekumberri/Donostia | Trail Running | 70.9 km | +3,550 m | 1,153 m - 2,644 m | Loop course | Route & profile |
Course route & map
Elevation profile & course telemetry
Altitude from 1,150 m to 3,926 m above sea level (+6,610 m D+, -6,610 m D-)
Elevation profile & course telemetry
Altitude from 1,153 m to 2,644 m above sea level (+3,550 m D+, -3,550 m D-)
Frequently asked questions (FAQ)
When and where does BUTS Iruñea-Donostia take place?
BUTS Iruñea-Donostia takes place in Pamplona, Navarra, ES (start area at coordinates 42.8125° N, 1.6458° W). The exact date for the next edition is currently open and will be announced by the organizer.
What races and distances are offered at BUTS Iruñea-Donostia?
The race program comprises 2 competitions, including Buts - Iruñea/Donostia (119.1 km, +6,610 m D+), and Buts Txiki - Lekumberri/Donostia (70.9 km, +3,550 m D+). The competitions belong to Trail Running.
What is the course layout and elevation profile for BUTS Iruñea-Donostia?
The main competition (Buts - Iruñea/Donostia over 119.1 km) is designed as a loop course featuring +6,610 m of elevation gain and -6,610 m of elevation loss, ranging between 1,150 m and 3,926 m above sea level. An interactive course map with route visualization, elevation profile, and GPX export is available in the course section on this page.
Where can I find registration and official race rules for BUTS Iruñea-Donostia?
Official race regulations, course details, and registration information are provided on the organizer's website (basqueultratrail.com).