Ultra Sierra Nevada vs Zegama-Aizkorri
Ultra Sierra Nevada (100km, 6200m D+) vs Zegama-Aizkorri (42km, 2736m D+). Side-by-side comparison: distances, elevation, difficulty, mandatory gear and registration. Which one suits you best?
Advanced
ElitePhysical profile
| Ultra Sierra Nevada | Zegama-Aizkorri | |
|---|---|---|
| Date | 3 April 2027 | 24 May 2026 |
| Terrain | Mountain | Skyrunning |
| Difficulty | Advanced | Elite |
| Max elevation gain | 6,200m D+ | 2,736m D+ |
| Max ITRA | 6 | 3 |
Distances — Ultra Sierra Nevada
| Name | Km | D+ | ITRA | Max Time |
|---|---|---|---|---|
| Ultra 100K | 100 | 6,200 | 6 | 30h |
| Marathon 42K | 42 | 2,800 | 3 | 14h |
| Trail 21K | 21 | 1,200 | 1 | 7h |
Distances — Zegama-Aizkorri
| Name | Km | D+ | ITRA | Max Time |
|---|---|---|---|---|
| Maratón Zegama-Aizkorri 42K | 42 | 2,736 | 3 | 10h |
| Kilómetro Vertical | 4.5 | 1,050 | 1 | 2h |
Logistics & costs
| Ultra Sierra Nevada | Zegama-Aizkorri | |
|---|---|---|
| Location | Granada, Andalusia | Zegama, Basque Country |
| Distance between venues | 661 km | |
| Registration opens | 1 March 2026 | 10 January 2026 |
| Registration closes | 15 June 2026 | 30 April 2026 |
| Mandatory Gear | 6 mandatory items | 1 mandatory items |
| Official website | Visit(opens in a new tab) | Visit(opens in a new tab) |
Pack 360 — Services
Registration
Ultra Sierra Nevada
No recommendations
Zegama-Aizkorri
No recommendations
Accommodation
Ultra Sierra Nevada
No recommendations
Zegama-Aizkorri
No recommendations
Gear
Ultra Sierra Nevada
Recommended for both
Zegama-Aizkorri
- Recommended for both
Nutrition
Ultra Sierra Nevada
Gourmet Latino Guava Sandwich(opens in a new tab)Recommended for bothGourmet Latino
Victory Endurance Total Recovery(opens in a new tab)Victory Endurance
Crown Sport Nutrition 3:1 Recovery+(opens in a new tab)Crown Sport Nutrition
Scientiffic Nutrition Recovery(opens in a new tab)Scientiffic Nutrition
Zegama-Aizkorri
- Gourmet Latino Guava Sandwich(opens in a new tab)Recommended for both
Gourmet Latino
Transport
Ultra Sierra Nevada
No recommendations
Zegama-Aizkorri
No recommendations
Car Rental
Ultra Sierra Nevada
Recommended for both
Recommended for both
Zegama-Aizkorri
- Recommended for both
- Recommended for both
Insurance
Ultra Sierra Nevada
No recommendations
Zegama-Aizkorri
No recommendations
Body Care
Ultra Sierra Nevada
Leukotape P Sports Tape(opens in a new tab)Recommended for bothBSN Medical (Leukotape)
Squirrel's Nut Butter Anti-Chafe Cream(opens in a new tab)Recommended for bothSquirrel's Nut Butter
Recommended for both
Recommended for both
Zegama-Aizkorri
- Leukotape P Sports Tape(opens in a new tab)Recommended for both
BSN Medical (Leukotape)
- Squirrel's Nut Butter Anti-Chafe Cream(opens in a new tab)Recommended for both
Squirrel's Nut Butter
- Recommended for both
- Recommended for both
Sun Protection
Ultra Sierra Nevada
Recommended for both
Recommended for both
Zegama-Aizkorri
- Recommended for both
- Recommended for both
Terrain and elevation
Ultra Sierra Nevada is classified as Mountain, while Zegama-Aizkorri is Skyrunning — different technical demands on paper. On its longest distance, Zegama-Aizkorri climbs around 65m per km versus 62m/km on the other race — the higher that ratio, the steeper and more technical the climbs tend to be.
Location and travel
Ultra Sierra Nevada (Andalusia) and Zegama-Aizkorri (Basque Country) sit roughly 661km apart — worth factoring into travel plans if you're weighing both for the same season.
Entry price
Zegama-Aizkorri is the cheaper entry, starting from €25 versus €45 for Ultra Sierra Nevada — a €20 gap on the entry-level distance.
Time of year
Ultra Sierra Nevada runs in April and Zegama-Aizkorri in May, so both fit in the same season if you want to race them separately. Ultra Sierra Nevada falls right in its region's recommended window. Zegama-Aizkorri falls right in its region's recommended window.
Mandatory gear
1 item overlaps between both mandatory gear lists. Ultra Sierra Nevada additionally requires frontal, guantes, silbato and 2 more.
Summary
If you're looking for a longer distance, Ultra Sierra Nevada is the choice. If you prefer a shorter and more accessible race, consider Zegama-Aizkorri. In terms of elevation gain, Ultra Sierra Nevada 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, Ultra Sierra Nevada or Zegama-Aizkorri?
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