Desafío Ultra El Cainejo vs Garmin Epic Trail Vall de Boí
Desafío Ultra El Cainejo (52km, 5500m D+) vs Garmin Epic Trail Vall de Boí (42km, 2800m D+). Side-by-side comparison: distances, elevation, difficulty, mandatory gear and registration. Which one suits you best?
Elite
ElitePhysical profile
| Desafío Ultra El Cainejo | Garmin Epic Trail Vall de Boí | |
|---|---|---|
| Date | 23 May 2026 | 27 June 2026 |
| Terrain | Mountain | Mountain |
| Difficulty | Elite | Elite |
| Max elevation gain | 5,500m D+ | 2,800m D+ |
| UTMB Category | 100K | — |
Distances — Desafío Ultra El Cainejo
| Name | Km | D+ | Max Time |
|---|---|---|---|
| Desafío Ultra 52K | 52 | 5,500 | 16h |
| Cainejo 35K | 35.7 | 3,200 | 12h |
| Cainejín 19K | 19.5 | 1,800 | 6h |
Distances — Garmin Epic Trail Vall de Boí
| Name | Km | D+ | Max Time |
|---|---|---|---|
| Marathon 42K | 42 | 2,800 | 12h |
| Sky 24K | 24 | 1,900 | 7h |
| Speed 12K | 12 | 500 | 3h |
Logistics & costs
| Desafío Ultra El Cainejo | Garmin Epic Trail Vall de Boí | |
|---|---|---|
| Location | Caín de Valdeón, León, Castile and Leon | Barruera, Vall de Boí, Catalonia |
| Distance between venues | 486 km | |
| Registration opens | 5 December 2025 | 15 January 2026 |
| Registration closes | 18 May 2026 | 15 June 2026 |
| Mandatory Gear | 6 mandatory items | 5 mandatory items |
| Official website | Visit | Visit |
Pack 360 — Services
Registration
Desafío Ultra El Cainejo
No recommendations
Garmin Epic Trail Vall de Boí
No recommendations
Accommodation
Desafío Ultra El Cainejo
No recommendations
Garmin Epic Trail Vall de Boí
No recommendations
Gear
Desafío Ultra El Cainejo
Salomon Speedcross 6Recommended for bothSalomon
Petzl Actik CorePetzl
Recommended for both
Gore Wear R7 GTX ShakedryRecommended for bothGore Wear
Garmin Epic Trail Vall de Boí
Salomon Speedcross 6Recommended for bothSalomon
Recommended for both
Gore Wear R7 GTX ShakedryRecommended for bothGore Wear
Nutrition
Desafío Ultra El Cainejo
Maurten Gel 100Recommended for bothMaurten
Precision Fuel & Hydration PH 1500Recommended for bothPrecision Fuel & Hydration

Bocadillo de Guayaba Gourmet LatinoRecommended for bothGourmet Latino
Garmin Epic Trail Vall de Boí
Maurten Gel 100Recommended for bothMaurten
Precision Fuel & Hydration PH 1500Recommended for bothPrecision Fuel & Hydration
Bocadillo de Guayaba Gourmet LatinoRecommended for bothGourmet Latino
Transport
Desafío Ultra El Cainejo
No recommendations
Garmin Epic Trail Vall de Boí
No recommendations
Car Rental
Desafío Ultra El Cainejo
Recommended for both
Recommended for both
Garmin Epic Trail Vall de Boí
Recommended for both
Recommended for both
Insurance
Desafío Ultra El Cainejo
No recommendations
Garmin Epic Trail Vall de Boí
No recommendations
Body Care
Desafío Ultra El Cainejo
After Bite Xtra GelAfter Bite
Buff CoolNet UV+Buff
Garmin Epic Trail Vall de Boí
No recommendations
Sun Protection
Desafío Ultra El Cainejo
Recommended for both
Piz Buin Mountain SPF 50+Piz Buin
Recommended for both
Garmin Epic Trail Vall de Boí
Recommended for both
Recommended for both
Terrain and elevation
Both races share the same terrain classification (Mountain). On its longest distance, Desafío Ultra El Cainejo climbs around 106m per km versus 67m/km on the other race — the higher that ratio, the steeper and more technical the climbs tend to be.
Location and travel
Desafío Ultra El Cainejo (Castile and Leon) and Garmin Epic Trail Vall de Boí (Catalonia) sit roughly 486km apart — worth factoring into travel plans if you're weighing both for the same season.
Entry price
Garmin Epic Trail Vall de Boí is the cheaper entry, starting from €30 versus €53 for Desafío Ultra El Cainejo — a €23 gap on the entry-level distance.
Time of year
Desafío Ultra El Cainejo runs in May and Garmin Epic Trail Vall de Boí in June, so both fit in the same season if you want to race them separately. Desafío Ultra El Cainejo falls right in its region's recommended window. Garmin Epic Trail Vall de Boí falls right in its region's recommended window.
Mandatory gear
The two mandatory gear lists don't overlap at all. Desafío Ultra El Cainejo additionally requires waterproof windbreaker, headlamp, whistle and 3 more; Garmin Epic Trail Vall de Boí additionally requires cortavientos, telefono, silbato and 2 more.
Summary
If you're looking for a longer distance, Desafío Ultra El Cainejo is the choice. If you prefer a shorter and more accessible race, consider Garmin Epic Trail Vall de Boí. In terms of elevation gain, Desafío Ultra El Cainejo 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 Ultra El Cainejo or Garmin Epic Trail Vall de Boí?
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