Photo: Crono Asperillas Organization (opens in a new tab)Casas del Castañar
Crono Asperillas
Saturday, 11 September 2027estimated date
Race data
Terrain
Mountain
Difficulty
Intermediate
Distance
2 modalities
Crono Asperillas 14.5K
Price: 16 EUR
- Distance
- 14.5 km
- Elevation Gain
- D+ 740m
- Max Time
- -
Mini Crono Asperillas 5.5K
Price: 12 EUR
- Distance
- 5.5 km
- Elevation Gain
- D+ 380m
- Max Time
- -
| Modality | Distance | Elevation Gain | Max Time | Price |
|---|---|---|---|---|
| Crono Asperillas 14.5K | 14.5 km | D+ 740m | - | 16 EUR |
| Mini Crono Asperillas 5.5K | 5.5 km | D+ 380m | - | 12 EUR |
Will your watch battery last the ~3 h of Crono Asperillas?Worked out for the longest course (14.5 km). See which watches reach the finish with GPS on and which die on the way.Check my watch Check my watchYour checklist for Crono Asperillas
What you need, category by category, with our #1 pick for this race. Tick what you already have.
0 of 6 ready
GPS watch
Done, you already have it
View on Amazon →(opens in a new tab)Garmin Instinct 3 AMOLED 45 mm
Onboard topo maps, unlike the Instinct 3 Solar
Downside: Shorter battery life than the Instinct 3 Solar (no solar charging or MIP display)
Gear
Mountain running shoes with good grip are essential on technical sections
Done, you already have it
View on Amazon →(opens in a new tab)
Nike Ultrafly
ZoomX foam: exceptional energy return inherited from the Vaporfly
Downside: High price (190 EUR)
Nutrition
Bring gels or bars to cover the effort on the climbs
Done, you already have it
View on Amazon →(opens in a new tab)
Maurten Gel 100
Tecnología de hidrogel: excelente tolerancia gástrica
Downside: Precio elevado respecto a otros geles
Sun Protection
Sweat-resistant SPF50 sunscreen
Done, you already have it
View on Amazon →(opens in a new tab)
ISDIN Fotoprotector Fusion Water SPF 50+
Ultralight texture, feels invisible on skin
Downside: Small format (50 ml), may run short on ultras
Body Care
Technical socks to minimize blister risk
Done, you already have it
View on Amazon →(opens in a new tab)
Buff CoolNet UV+
UPF 50+: blocks 98% of UV radiation
Downside: UV protection decreases with wear after many washes
Car Rental
Useful for combining the race with a getaway through the valley's villages
Done, you already have it
View on Amazon →(opens in a new tab)
DRIVALIA Alquiler de vehículos por Suscripción CarCloud Country Plus
Trip logistics
Registration, travel and insurance: what you should have sorted before race day.
Affiliate links: if you buy, we earn a commission at no extra cost to you.
Gear up for Crono Asperillas
Buying guides with the best value for money, picked for this kind of terrain.
Swipe to see all 4 comparisons
Historical weather
What to wear at 25 °C: guide and kit →
Typical weather for the race date (10-year average)
Temperature
18°C – 29°C
Average 23°C
Rain
7%
0.3 mm avg
Wind
15 km/h
max. average
Sunshine hours
12h
daily average
Gear recommendations
Sun protection essential (12h sunshine, up to 29°C)
Forecast for 11 September
Weather forecast from Open-Meteo (may change until race day)
Crono Asperillas
Crono Asperillas is a mountain time-trial race held every year in Casas del Castañar, a small town in the Jerte Valley (Cáceres). In 2026 it reaches its 17th edition, cementing itself as a classic date on Extremadura’s mountain running calendar and a fixture of the official FEXME calendar. The organization caps the race at 150 bibs, giving it a close-knit, local character compared to the valley’s larger events.
A 14.5 km course with 740 m of elevation gain
The time-trial format, with staggered starts, is the race’s trademark. The main distance covers 14.5 kilometers with 740 meters of elevation gain along the trails surrounding Casas del Castañar, crossing cherry orchards and chestnut woodland typical of the area. For those who prefer a more approachable challenge, there’s the Mini Crono Asperillas, at 5.5 km and 380 m of elevation gain, open from age 13.
A close-knit event in the Jerte Valley
Unlike other large races in the area, Crono Asperillas keeps the spirit of a village race: limited bibs, local organization, and a close relationship between runners and residents. The runner kit includes an official t-shirt, and the race usually runs alongside kids’ races, making it a family plan as much as a sporting one.
Casas del Castañar Beyond the Race
Casas del Castañar is part of the Jerte Valley, one of Extremadura’s most beautiful regions, famous for its spring cherry blossom and its mountain scenery year-round. September is also grape harvest season and late cherry season in some valley towns. Take the chance to explore nearby villages like Cabezuela del Valle or Jerte, and if you want to plan the full trip in more detail, check our race planner.
360Complete Pack
Crono Asperillas 2026 Registration
RegistrationRegistration through ChipSerena, with only 150 bibs available and prices rising in tiers.
Tips
- •Only 150 bibs available: register early
- •First price tier until September 3 (cheaper)
- •Non-federated runners must add €5 to the registration fee
- •Runner kit includes an official t-shirt
Where to Stay for Crono Asperillas
AccommodationCasas del Castañar and the rest of the Jerte Valley offer charming rural houses and accommodation, ideal for a race weekend.
Tips
- •Casas del Castañar has rural houses close to the course
- •Cabezuela del Valle and Jerte, just minutes away, add more options
- •Book ahead: September overlaps with the late cherry season and local grape harvest
Gear for Crono Asperillas
GearA mountain course through Jerte Valley trails, with demanding elevation gain despite the short distance.
Tips
- •Mountain running shoes with good grip are essential on technical sections
- •A light pack or vest to carry your own water
- •Poles recommended to make the most of the climbs
Which shoes for Crono Asperillas?
Which footwear fits based on the race's terrain and weather
Which GPS watch for Crono Asperillas?
Which watch has the battery to last based on your estimated finish time
Best Trail Running Poles 2026: Comparison and Buying Guide
Best trail running poles 2026: Black Diamond, Leki and Komperdell compared. Carbon vs aluminium, folding length, technique and how to pick your size.
Best Trail Running Hydration Vests 2026: Comparison and Buying Guide
Best trail running hydration vests 2026: 12 vests and packs compared. How many litres you need by distance, soft flasks vs reservoir, and fit.
Strength Training Gear for Trail Running at Home 2026: Comparison and Buying Guide
Comparison of the best strength training gear for trail runners at home: dumbbells, resistance bands, kettlebell, TRX, weight bench and foam roller, with a 3-day-a-week routine.
Nutrition for Crono Asperillas
NutritionA short race but with demanding elevation gain. Available information does not detail on-course aid stations, so plan for self-sufficiency.
Tips
- •Bring gels or bars to cover the effort on the climbs
- •Hydrate well before the start, especially if September is warm
Best salt tablets and sodium capsules for running 2026
A comparison of the 7 best salt tablets and sodium capsules for running and trail 2026: 226ERS Sub9 Salts, Crown Pro Salt Caps, Victory Endurance, Precision Hydration PH 1500 and more. How many salt tablets to take per hour, how to calculate your sweat rate and which format to choose.
Getting to Casas del Castañar
TransportCasas del Castañar is in the Jerte Valley (Cáceres), accessible by road from Plasencia.
Tips
- •From Madrid: A-5 to Navalmoral de la Mata, then EX-A1 and N-110 (~2h 30min)
- •From Plasencia: N-110 towards the Jerte Valley (~30 min)
- •No train station in town; the nearest is Plasencia
Car Rental for Crono Asperillas
Car RentalA car is recommended to get around the Jerte Valley, on winding but well-maintained mountain roads.
Tips
- •Useful for combining the race with a getaway through the valley's villages
Sports Insurance for Crono Asperillas
InsuranceThe race is part of the FEXME 2025 calendar, so a federation license or day insurance is required.
Tips
- •FEXME federation license or an equivalent from another region
- •Non-federated runners can register by paying an extra €5 for day insurance
Sun Protection for Crono Asperillas
Sun ProtectionIn September the sun is still strong in the Jerte Valley, especially on sections without tree cover.
Tips
- •Sweat-resistant SPF50 sunscreen
- •Cap or visor for the most exposed sections
Best Sunscreen for Runners 2026: 7 Sweat-Proof SPF 50 Picks
Which sunscreen survives a sweaty long run? We compared 7 SPF 50 sweat-proof picks — creams, sticks and a lip balm — on heat, altitude UV and sweat resistance. See the winner.
Body Care for Crono Asperillas
Body CareA mountain course with technical sections: look after your footwear and skin to avoid chafing.
Tips
- •Technical socks to minimize blister risk
- •Vaseline on common chafing spots
Frequently Asked Questions
- When is Crono Asperillas 2026?
- The XVII edition takes place on September 12, 2026, in Casas del Castañar, Jerte Valley (Cáceres).
- What distances does Crono Asperillas offer?
- Two races: the Crono Asperillas 14.5 km with 740 m of elevation gain, and the Mini Crono Asperillas 5.5 km with 380 m of elevation gain.
- How much does registration cost?
- The 14.5 km race costs €16 until September 3 (€21 until September 9). The 5.5 km Mini Crono costs €12 (€17 in the second period). Non-federated runners must add €5.
- Is there a bib limit?
- Yes, the organization caps the race at only 150 bibs, so early registration is recommended.
- What is the minimum age?
- 17 years old for the 14.5 km races and 13 years old for the 5.5 km Mini Crono.
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