Desafío Urbión vs La Osera
Desafío Urbión (37km, 2600m D+) vs La Osera (45km, 2300m D+). Side-by-side comparison: distances, elevation, difficulty, mandatory gear and registration. Which one suits you best?
Advanced 
Advanced Physical profile
| Desafío Urbión | La Osera | |
|---|---|---|
| Date | 5 September 2026 | 16 May 2026 |
| Terrain | Mountain | Mountain |
| Difficulty | Advanced | Advanced |
| Max elevation gain | 2,600m D+ | 2,300m D+ |
Distances — Desafío Urbión
| Name | Km | D+ |
|---|---|---|
| Desafío Urbión 37K | 37 | 2,600 |
| Open 16.5K | 16.5 | 1,200 |
| 6K | 6 | 300 |
Distances — La Osera
| Name | Km | D+ |
|---|---|---|
| Marathon 45K | 45 | 2,300 |
| Half Marathon 25K | 25 | 1,300 |
| Sprint Trail 12K | 12 | 600 |
| Hiking 12K | 12 | 600 |
Logistics & costs
| Desafío Urbión | La Osera | |
|---|---|---|
| Location | Covaleda, Castile and Leon | Paterna del Madera, Albacete, Castile-La Mancha |
| Distance between venues | 374 km | |
| Registration opens | 1 January 2026 | — |
| Registration closes | 25 August 2026 | — |
| Mandatory Gear | 6 mandatory items | 0 mandatory items |
| Official website | Visit | Visit |
Pack 360 — Services
Registration
Desafío Urbión
No recommendations
La Osera
No recommendations
Accommodation
Desafío Urbión
No recommendations
La Osera
No recommendations
Gear
Desafío Urbión
-
Salomon Speedcross 6Recommended for bothSalomon
-
Salomon ADV Skin 12Salomon
-
-
Gore Wear R7 GTX ShakedryGore Wear
La Osera
- Salomon Speedcross 6Recommended for both
Salomon
Nutrition
Desafío Urbión
-
Maurten Gel 100Recommended for bothMaurten
-
226ERS Isotonic Drink226ERS
-
Dátiles Medjool DorimedDorimed
La Osera
- Maurten Gel 100Recommended for both
Maurten
-
Bocadillo de Guayaba Gourmet LatinoGourmet Latino
Transport
Desafío Urbión
No recommendations
La Osera
No recommendations
Car Rental
Desafío Urbión
-
Recommended for both -
Recommended for both
La Osera
- Recommended for both
- Recommended for both
Insurance
Desafío Urbión
No recommendations
La Osera
No recommendations
Body Care
Desafío Urbión
-
Compeed Ampollas Medianas DuploCompeed
-
Lurbel Desafío FourLurbel
La Osera
-
After Bite Xtra GelAfter Bite
Sun Protection
Desafío Urbión
-
Piz Buin Mountain SPF 50+Piz Buin
-
Recommended for both
La Osera
-
- Recommended for both
Summary
If you're looking for a longer distance, La Osera is the choice. If you prefer a shorter and more accessible race, consider Desafío Urbión. In terms of elevation gain, Desafío Urbión is the more demanding option. Both races offer a complete Pack 360 with everything you need for race day.
Frequently asked questions
Which is harder, Desafío Urbión or La Osera?
When does each race take place?
How many distances does each race offer?
What type of terrain does each race have?
Do I need the same mandatory gear for both?
Plan your race
Compare Spain's best trail running races side by side. Analyze distances, elevation, registration prices, mandatory gear and the complete Pack 360 to make the best decision.