Irati Trail vs La Osera
Irati Trail (30km, 2000m 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
| Irati Trail | La Osera | |
|---|---|---|
| Date | 6 June 2026 | 16 May 2026 |
| Terrain | Mountain | Mountain |
| Difficulty | Advanced | Advanced |
| Max elevation gain | 2,000m D+ | 2,300m D+ |
Distances — Irati Trail
| Name | Km | D+ |
|---|---|---|
| Irati Trail 30K | 30 | 2,000 |
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
| Irati Trail | La Osera | |
|---|---|---|
| Location | Ezcároz, Navarre | Paterna del Madera, Albacete, Castile-La Mancha |
| Distance between venues | 490 km | |
| Registration opens | — | — |
| Registration closes | — | — |
| Mandatory Gear | 0 mandatory items | 0 mandatory items |
| Official website | Visit | Visit |
Pack 360 — Services
Registration
Irati Trail
No recommendations
La Osera
No recommendations
Accommodation
Irati Trail
No recommendations
La Osera
No recommendations
Gear
Irati Trail
-
Salomon Speedcross 6Recommended for bothSalomon
-
-
Salomon Bonatti WPSalomon
-
Salomon ADV Skin 12Salomon
La Osera
- Salomon Speedcross 6Recommended for both
Salomon
Nutrition
Irati Trail
-
Maurten Gel 100Recommended for bothMaurten
-
226ERS Isotonic Drink226ERS
-
Dátiles Medjool DorimedDorimed
-
Clif Bar Original Energy BarClif Bar
La Osera
- Maurten Gel 100Recommended for both
Maurten
-
Bocadillo de Guayaba Gourmet LatinoGourmet Latino
Transport
Irati Trail
No recommendations
La Osera
No recommendations
Car Rental
Irati Trail
-
Recommended for both
La Osera
- Recommended for both
-
Insurance
Irati Trail
No recommendations
La Osera
No recommendations
Body Care
Irati Trail
-
Compeed Ampollas Medianas DuploCompeed
-
Lurbel Desafío FourLurbel
La Osera
-
After Bite Xtra GelAfter Bite
Sun Protection
Irati Trail
-
Recommended for both -
Recommended for both
La Osera
- Recommended for both
- 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 Irati Trail. In terms of elevation gain, La Osera 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, Irati Trail 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.