La Osera vs Ultra Trail Gredos
La Osera (45km, 2300m D+) vs Ultra Trail Gredos (71km, 2322m D+). Side-by-side comparison: distances, elevation, difficulty, mandatory gear and registration. Which one suits you best?
Advanced 
Advanced Physical profile
| La Osera | Ultra Trail Gredos | |
|---|---|---|
| Date | 16 May 2026 | 19 September 2026 |
| Terrain | Mountain | Mountain |
| Difficulty | Advanced | Advanced |
| Max elevation gain | 2,300m D+ | 2,322m D+ |
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 |
Distances — Ultra Trail Gredos
| Name | Km | D+ |
|---|---|---|
| Ultra de Gredos 71K | 71 | 2,322 |
| Gran Trail de Gredos 54K | 54 | 1,341 |
| Maratón de Gredos 43K | 43 | 1,347 |
| Skyline de Gredos 33K | 33 | 691 |
| Media Maratón de Gredos 20K | 20 | 472 |
| 10K de Gredos | 10 | 168 |
Logistics & costs
| La Osera | Ultra Trail Gredos | |
|---|---|---|
| Location | Paterna del Madera, Albacete, Castile-La Mancha | Hoyos del Espino, Ávila, Castile and Leon |
| Distance between venues | 312 km | |
| Registration opens | — | — |
| Registration closes | — | 19 August 2026 |
| Mandatory Gear | 0 mandatory items | 4 mandatory items |
| Official website | Visit | Visit |
Pack 360 — Services
Registration
La Osera
No recommendations
Ultra Trail Gredos
No recommendations
Accommodation
La Osera
No recommendations
Ultra Trail Gredos
No recommendations
Gear
La Osera
-
Salomon Speedcross 6Recommended for bothSalomon
Ultra Trail Gredos
- Salomon Speedcross 6Recommended for both
Salomon
-
Petzl Actik CorePetzl
-
-
Gore Wear R7 GTX ShakedryGore Wear
Nutrition
La Osera
-
Maurten Gel 100Recommended for bothMaurten
-
Bocadillo de Guayaba Gourmet LatinoGourmet Latino
Ultra Trail Gredos
- Maurten Gel 100Recommended for both
Maurten
-
Precision Fuel & Hydration PH 1500Precision Fuel & Hydration
-
-
Dátiles Medjool DorimedDorimed
Transport
La Osera
No recommendations
Ultra Trail Gredos
No recommendations
Car Rental
La Osera
-
Recommended for both -
Recommended for both
Ultra Trail Gredos
- Recommended for both
- Recommended for both
Insurance
La Osera
No recommendations
Ultra Trail Gredos
No recommendations
Body Care
La Osera
-
After Bite Xtra GelAfter Bite
Ultra Trail Gredos
-
Compeed Ampollas Medianas DuploCompeed
-
Lurbel Desafío FourLurbel
Sun Protection
La Osera
-
Recommended for both -
Recommended for both
Ultra Trail Gredos
- Recommended for both
-
Piz Buin Mountain SPF 50+Piz Buin
- Recommended for both
Summary
If you're looking for a longer distance, Ultra Trail Gredos is the choice. If you prefer a shorter and more accessible race, consider La Osera. In terms of elevation gain, Ultra Trail Gredos 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, La Osera or Ultra Trail Gredos?
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.