101 Kilometres in 24 Hours - La Legión vs Ultra Trail Bosques del Sur
101 Kilometres in 24 Hours - La Legión (101km, 2819m D+) vs Ultra Trail Bosques del Sur (70km, 3700m D+). Side-by-side comparison: distances, elevation, difficulty, mandatory gear and registration. Which one suits you best?
Advanced
AdvancedPhysical profile
| 101 Kilometres in 24 Hours - La Legión | Ultra Trail Bosques del Sur | |
|---|---|---|
| Date | 9 May 2026 | 30 May 2026 |
| Terrain | Mountain | Trail |
| Difficulty | Advanced | Advanced |
| Max elevation gain | 2,819m D+ | 3,700m D+ |
| Max ITRA | — | 3 |
Distances — 101 Kilometres in 24 Hours - La Legión
| Name | Km | D+ | Max Time |
|---|---|---|---|
| Individual March 101K | 101 | 2,819 | 24h |
Distances — Ultra Trail Bosques del Sur
| Name | Km | D+ | ITRA | Max Time |
|---|---|---|---|---|
| Ultra 70K | 70 | 3,700 | 3 | 17h |
| Marathon 42K | 42 | 2,438 | 1 | 10h |
| Half 21K | 21 | 1,190 | — | 5h |
| Mini 10K | 10 | 600 | — | 3h |
| Kids 4K | 4 | 100 | — | 1h 30min |
Logistics & costs
| 101 Kilometres in 24 Hours - La Legión | Ultra Trail Bosques del Sur | |
|---|---|---|
| Location | Ronda, Málaga, Andalusia | Cazorla, Andalusia |
| Distance between venues | 231 km | |
| Registration opens | 24 January 2026 | 16 February 2026 |
| Registration closes | 30 April 2026 | — |
| Mandatory Gear | 6 mandatory items | 6 mandatory items |
| Official website | Visit | Visit |
Pack 360 — Services
Registration
101 Kilometres in 24 Hours - La Legión
No recommendations
Ultra Trail Bosques del Sur
No recommendations
Accommodation
101 Kilometres in 24 Hours - La Legión
No recommendations
Ultra Trail Bosques del Sur
No recommendations
Gear
101 Kilometres in 24 Hours - La Legión
Salomon Speedcross 6Recommended for bothSalomon
Ultra Trail Bosques del Sur
- Salomon Speedcross 6Recommended for both
Salomon
Nutrition
101 Kilometres in 24 Hours - La Legión
Bocadillo de Guayaba Gourmet LatinoRecommended for bothGourmet Latino
Ultra Trail Bosques del Sur
- Bocadillo de Guayaba Gourmet LatinoRecommended for both
Gourmet Latino
Transport
101 Kilometres in 24 Hours - La Legión
No recommendations
Ultra Trail Bosques del Sur
No recommendations
Car Rental
101 Kilometres in 24 Hours - La Legión
Recommended for both
Recommended for both
Ultra Trail Bosques del Sur
- Recommended for both
- Recommended for both
Insurance
101 Kilometres in 24 Hours - La Legión
No recommendations
Ultra Trail Bosques del Sur
No recommendations
Body Care
101 Kilometres in 24 Hours - La Legión
Julbo AerospeedRecommended for bothJulbo
Buff CoolNet UV+Recommended for bothBuff
Salomon Cross VisorRecommended for bothSalomon
Ultra Trail Bosques del Sur
- Julbo AerospeedRecommended for both
Julbo
- Buff CoolNet UV+Recommended for both
Buff
- Salomon Cross VisorRecommended for both
Salomon
Sun Protection
101 Kilometres in 24 Hours - La Legión
Recommended for both
Recommended for both
Ultra Trail Bosques del Sur
- Recommended for both
- Recommended for both
Terrain and elevation
101 Kilometres in 24 Hours - La Legión is classified as Mountain, while Ultra Trail Bosques del Sur is Trail — different technical demands on paper. On its longest distance, Ultra Trail Bosques del Sur climbs around 53m per km versus 28m/km on the other race — the higher that ratio, the steeper and more technical the climbs tend to be.
Location and travel
101 Kilometres in 24 Hours - La Legión and Ultra Trail Bosques del Sur both take place in Andalusia, about 231km apart in a straight line — close enough to scout one course while training for the other, or fold both into a single trip.
Entry price
Ultra Trail Bosques del Sur is the cheaper entry, starting from €5 versus €90 for 101 Kilometres in 24 Hours - La Legión — a €85 gap on the entry-level distance.
Time of year
Both races take place in May, so you'll have to pick one per season. 101 Kilometres in 24 Hours - La Legión falls right in its region's recommended window. Ultra Trail Bosques del Sur falls right in its region's recommended window.
Mandatory gear
The two mandatory gear lists don't overlap at all. 101 Kilometres in 24 Hours - La Legión additionally requires headlamp, hydration pack, windbreaker and 3 more; Ultra Trail Bosques del Sur additionally requires frontal, cortavientos, silbato and 3 more.
Summary
If you're looking for a longer distance, 101 Kilometres in 24 Hours - La Legión is the choice. If you prefer a shorter and more accessible race, consider Ultra Trail Bosques del Sur. In terms of elevation gain, Ultra Trail Bosques del Sur 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, 101 Kilometres in 24 Hours - La Legión or Ultra Trail Bosques del Sur?
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