X CxM Sierro vs Haritzen Mendi Lasterketa
X CxM Sierro (24km, 1100m D+) vs Haritzen Mendi Lasterketa (24.25km, 1650m D+). Side-by-side comparison: distances, elevation, difficulty, mandatory gear and registration. Which one suits you best?
Advanced 
Advanced Physical profile
| X CxM Sierro | Haritzen Mendi Lasterketa | |
|---|---|---|
| Date | 3 May 2026 | 16 May 2026 |
| Terrain | Mountain | Mountain |
| Difficulty | Advanced | Advanced |
| Max elevation gain | 1,100m D+ | 1,650m D+ |
Distances — X CxM Sierro
| Name | Km | D+ | Max Time |
|---|---|---|---|
| CxM 24K | 24 | 1,100 | 4h30 |
| MiniCxM 12K | 12 | 680 | 4h30 |
Distances — Haritzen Mendi Lasterketa
| Name | Km | D+ | Max Time |
|---|---|---|---|
| Haritza | 24.25 | 1,650 | 5h |
| Artea | 11 | 550 | 2h |
Logistics & costs
| X CxM Sierro | Haritzen Mendi Lasterketa | |
|---|---|---|
| Location | Sierro, Andalusia | Unzué, Navarre |
| Distance between venues | 597 km | |
| Registration opens | — | 1 March 2026 |
| Registration closes | 29 April 2026 | 10 May 2026 |
| Mandatory Gear | 3 mandatory items | 1 mandatory items |
| Official website | Visit | Visit |
Pack 360 — Services
Registration
X CxM Sierro
No recommendations
Haritzen Mendi Lasterketa
No recommendations
Accommodation
X CxM Sierro
No recommendations
Haritzen Mendi Lasterketa
No recommendations
Gear
X CxM Sierro
-
Salomon Speedcross 6Recommended for bothSalomon
-
Salomon ADV Skin 12Recommended for bothSalomon
-
Salomon Soft Flask 150 mlSalomon
-
Haritzen Mendi Lasterketa
- Salomon Speedcross 6Recommended for both
Salomon
- Salomon ADV Skin 12Recommended for both
Salomon
-
Gore Wear R7 GTX ShakedryGore Wear
Nutrition
X CxM Sierro
-
Maurten Gel 100Recommended for bothMaurten
-
Precision Fuel & Hydration PH 1500Precision Fuel & Hydration
-
Dátiles Medjool DorimedDorimed
Haritzen Mendi Lasterketa
- Maurten Gel 100Recommended for both
Maurten
-
226ERS Isotonic Drink226ERS
Transport
X CxM Sierro
No recommendations
Haritzen Mendi Lasterketa
No recommendations
Car Rental
X CxM Sierro
-
-
Recommended for both
Haritzen Mendi Lasterketa
- Recommended for both
Insurance
X CxM Sierro
No recommendations
Haritzen Mendi Lasterketa
No recommendations
Body Care
X CxM Sierro
-
Julbo AerospeedJulbo
-
Buff CoolNet UV+Recommended for bothBuff
-
BodyGlide Original Anti-Chafe BalmBodyGlide
-
Compeed Ampollas Medianas DuploCompeed
Haritzen Mendi Lasterketa
- Buff CoolNet UV+Recommended for both
Buff
-
Salomon Cross VisorSalomon
Sun Protection
X CxM Sierro
-
Recommended for both -
Recommended for both
Haritzen Mendi Lasterketa
- Recommended for both
- Recommended for both
Summary
If you're looking for a longer distance, Haritzen Mendi Lasterketa is the choice. If you prefer a shorter and more accessible race, consider X CxM Sierro. In terms of elevation gain, Haritzen Mendi Lasterketa 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, X CxM Sierro or Haritzen Mendi Lasterketa?
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.