Basajaun Trail Race vs Ultra Trail Gredos
Basajaun Trail Race (43km, 2550m 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
| Basajaun Trail Race | Ultra Trail Gredos | |
|---|---|---|
| Date | 17 October 2026 | 19 September 2026 |
| Terrain | Mountain | Mountain |
| Difficulty | Advanced | Advanced |
| Max elevation gain | 2,550m D+ | 2,322m D+ |
Distances — Basajaun Trail Race
| Name | Km | D+ |
|---|---|---|
| BTR 43K | 43 | 2,550 |
| BTR 23K | 23 | 1,350 |
| BTR 13K | 13 | 700 |
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
| Basajaun Trail Race | Ultra Trail Gredos | |
|---|---|---|
| Location | Galdeano, Navarre | Hoyos del Espino, Ávila, Castile and Leon |
| Distance between venues | 369 km | |
| Registration opens | — | — |
| Registration closes | — | 19 August 2026 |
| Mandatory Gear | 2 mandatory items | 4 mandatory items |
| Official website | Visit | Visit |
Pack 360 — Services
Registration
Basajaun Trail Race
No recommendations
Ultra Trail Gredos
No recommendations
Accommodation
Basajaun Trail Race
No recommendations
Ultra Trail Gredos
No recommendations
Gear
Basajaun Trail Race
-
Salomon Speedcross 6Recommended for bothSalomon
-
Salomon ADV Skin 12Salomon
-
Gore Wear R7 GTX ShakedryRecommended for bothGore Wear
Ultra Trail Gredos
- Salomon Speedcross 6Recommended for both
Salomon
-
Petzl Actik CorePetzl
-
- Gore Wear R7 GTX ShakedryRecommended for both
Gore Wear
Nutrition
Basajaun Trail Race
-
Maurten Gel 100Recommended for bothMaurten
-
226ERS Isotonic Drink226ERS
Ultra Trail Gredos
- Maurten Gel 100Recommended for both
Maurten
-
Precision Fuel & Hydration PH 1500Precision Fuel & Hydration
-
-
Dátiles Medjool DorimedDorimed
Transport
Basajaun Trail Race
No recommendations
Ultra Trail Gredos
No recommendations
Car Rental
Basajaun Trail Race
-
Recommended for both
Ultra Trail Gredos
-
- Recommended for both
Insurance
Basajaun Trail Race
No recommendations
Ultra Trail Gredos
No recommendations
Body Care
Basajaun Trail Race
-
Buff CoolNet UV+Buff
-
Salomon Cross VisorSalomon
Ultra Trail Gredos
-
Compeed Ampollas Medianas DuploCompeed
-
Lurbel Desafío FourLurbel
Sun Protection
Basajaun Trail Race
-
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 Basajaun Trail Race. In terms of elevation gain, Basajaun Trail Race 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, Basajaun Trail Race 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.