Photo: Jesusccastillo (CC BY-SA 4.0), Wikimedia Commons (opens in a new tab) / Source (opens in a new tab)Sierra de Gata
Ultra 100K Sierra de Gata
Saturday, 10 April 2027
Race data
Terrain
Ultra Trail
Difficulty
Elite
Distance
2 modalities
Ultra 100K
- Distance
- 100 km
- Elevation Gain
- D+ 5436m
- Max Time
- -
Trail 20K
- Distance
- 20 km
- Elevation Gain
- D+ 400m
- Max Time
- -
| Modality | Distance | Elevation Gain | Max Time | Price |
|---|---|---|---|---|
| Ultra 100K | 100 km | D+ 5436m | - | - |
| Trail 20K | 20 km | D+ 400m | - | - |
Will your watch battery last the ~24 h of Ultra 100K Sierra de Gata?Worked out for the longest course (100 km). See which watches reach the finish with GPS on and which die on the way.Check my watch Check my watchYour checklist for Ultra 100K Sierra de Gata
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
Headlamp and spare batteries for the night
Done, you already have it
View on Amazon →(opens in a new tab)
Salomon Speedcross 6
Agarre excepcional en barro y terreno técnico
Downside: Durabilidad media en asfalto
Nutrition
Gels every 40-45 minutes on long efforts
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
SPF50 sweat-resistant, reapply during the race
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
Anti-chafe balm on underarms, thighs and feet
Done, you already have it
View on Amazon →(opens in a new tab)
BodyGlide Original Anti-Chafe Balm
Easy-to-apply stick format, even with sweaty hands
Downside: Higher price than traditional petroleum jelly
Car Rental
Book early for race weekend
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.
Ultra 100K Sierra de Gata requires mandatory gear: get it sorted early
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 10 °C: guide and kit →
Typical weather for the race date (10-year average)
Temperature
8°C – 17°C
Average 12°C
Rain
43%
3.5 mm avg
Wind
17 km/h
max. average
Sunshine hours
10h
daily average
Gear recommendations
Bring a waterproof jacket (43% chance of rain)
Asics
Asics Gel-Trabuco 14 GTX
A best-selling beginner trail shoe: GEL cushioning, good stability and a waterproof GORE-TEX membrane. Versatile and reliable for training on mixed terrain in any weather.
Berghaus
Berghaus Paclite 2.0 GTX
Waterproof jacket with a Gore-Tex Paclite membrane (around 330 g). Fully waterproof with taped seams, fixed adjustable hood, storm flap behind the zip and cuff adjustment. Packs down small in a vest. Heavier than a pure running hardshell, but it meets the waterproof-breathable membrane requirement in race rules and is the affordable route into Gore-Tex.
Brooks
Brooks Cascadia 20 GTX
The Cascadia 20 with a GORE-TEX membrane: stability and protection for rocky mountain terrain, keeping the foot dry on cold, rainy days.
Gore Wear
Gore Wear C5 GORE-TEX Glove
Glove with a fully waterproof, windproof GORE-TEX membrane and light insulation. The pick for running in snow, sleet or heavy rain while keeping your hand dry.
Gore Wear
Gore Wear M GORE-TEX Thermo Glove
Warmer variant of the Gore Wear C5 GORE-TEX: the same fully waterproof, windproof membrane, with extra thermal lining for intense cold on top of snow or rain. The pick when the problem isn't just water, but water AND hard cold at once.
Gore Wear
Gore Wear R7 GTX Shakedry
Chubasquero Gore-Tex Shakedry ultraligero (110 g). Impermeabilidad total sin membrana interior, altamente transpirable. El referente para corredores de montaña.
Nike
Nike Pegasus Trail 5 GORE-TEX
The best-selling gateway trail shoe: comfortable, cushioned and versatile for moving from road to trail. Waterproof GORE-TEX version, perfect for beginners and easy runs on mixed terrain.
Salomon
Salomon Bonatti Pro Waterproof Glove
Lightweight waterproof glove built for running, not just standing still in the snow: a waterproof membrane with more dexterity and less bulk than a thick membrane glove, for sustained rain without giving up handling gels or poles.
Salomon
Salomon Bonatti WP
Chaqueta cortavientos impermeable ultraligera (135 g). Costuras selladas, capucha ajustable y ventilación trasera. Se pliega en su propio bolsillo.
Salomon
Salomon Speedcross 6 GTX
The Speedcross 6 with a GORE-TEX membrane: the same aggressive 5 mm lugs for mud and soft ground, now waterproof for winter, rain and snow.
Sealskinz
Sealskinz Waterproof Lightweight Glove
Lightweight waterproof glove from a brand that specializes in outdoor sport waterproofing. A solid middle ground between a thin windproof glove and a thick membrane glove: genuinely waterproof without the bulk or price of the Gore C5.
TRIWONDER
TRIWONDER Polainas Impermeables Trail
Waterproof, breathable low gaiters for trail running, hiking and mountain use. Under-shoe strap and adjustable elastic band. A budget-friendly alternative to premium technical brand gaiters.
Bring thermal layers (low of 8°C)
Buff
Buff Thermonet
Buff tubular térmico con tecnología Primaloft. Retiene el calor corporal, ultraligero y polivalente: gorro, braga, cinta. Ideal para alta montaña.
Craft
Craft Pro Hypervent LS Wind Top
Thermal top with a windproof ripstop panel on the chest and a highly ventilated soft jersey back. Built for high-intensity sessions in cold, windy conditions, with long cuffs and thumb loops.
HANKER
HANKER Braga de Cuello Térmica
Unisex thermal seamless neck gaiter in Soft Air Plus fabric (97% polyester). Seamless fit designed for trail running, cycling, motorcycling and outdoor sports. A budget alternative to Buff for moderate cold.
Icebreaker
Icebreaker Merino 200 Oasis LS Crewe
Long-sleeve thermal top in 100% merino wool (200g). Natural temperature regulation, genuine multi-day odor resistance and a soft, non-itch handfeel from the fine merino yarn.
Odlo
Odlo Active Warm Eco
Camiseta térmica de manga larga con tejido reciclado y tratamiento antiolor. Regulación térmica activa, ideal como capa base en montaña.
Odlo
Odlo I-Thermic Longsleeve Mujer
Women's long-sleeve thermal top with insulating panels placed over cold-sensitive areas (lower back and kidneys). A mid-layer built for genuinely cold winter conditions, mountain outings or cross-country-style trail sessions.
ROCKBROS
ROCKBROS Pasamontañas Térmico y Cortaviento
Thermal windproof balaclava covering head, ears, cheeks and neck. Designed for cycling and motorcycling, it works just as well on windy, freezing trail runs.
Salomon
Salomon Agile LS Tee
Lightweight quick-dry polyester long-sleeve tee with underarm mesh, a side pocket and reflective details. Works as a standalone layer in mild cold or as a base layer under a windbreaker on colder days.
Salomon
Salomon Cross Run Tight
Mallas largas de trail con tejido elástico y transpirable. Cintura ajustable, bolsillo trasero con cremallera. Protección contra el frío y la vegetación.
Salomon
Salomon Cross Warm Glove
Guantes térmicos de running con palma antideslizante y puntas táctiles. Ligeros, cálidos y compatibles con bastones.
Under Armour
Under Armour ColdGear Armour Compression Mock
Compression thermal top with a dual-layer fabric: ultra-warm brushed interior and quick-dry exterior. Second-skin compression fit with stretch mesh panels at the back and underarms for ventilation without losing warmth.
Under Armour
Under Armour ColdGear Armour Compression Mock Hombre
Men's high-neck thermal compression top: brushed interior that holds heat and a quick-dry outer. Base layer for cold-weather runs.
Forecast for 10 April
Weather forecast from Open-Meteo (may change until race day)
Ultra 100K Sierra de Gata
The Ultra 100K Sierra de Gata is a new race debuting on 10 April 2027 in the Sierra de Gata region of Cáceres, in the heart of Extremadura. The organisers present it as “the beginning of something big” after an edition 0 and it carries UTMB 100K status.
Two races: 100K and Trail 20K
The Ultra 100K adds 100 km with 5,436 m D+ according to the official website, through mountains, historic paths, forests and several villages of the region. The Trail 20K (20 km, 400 m D+) is the short option.
A debut with limited spots
As a first edition, capacity is limited. The lowest rate (€90 for the 100K) lasts until 31 December 2026.
Sierra de Gata beyond the race
The region combines stone villages, olive groves and chestnut forests: a good reason to extend the trip.
If you are combining your trip with other races nearby, take a look at the races in Extremadura and plan your season with the planner.
Mandatory Gear
According to the official race regulations
May be required depending on the weather: check the race rules
360Complete Pack
Ultra 100K Sierra de Gata 2027 registration
RegistrationRegistration is handled on Chipserena. The cheapest rate lasts until 31 December 2026: €90 for the 100K and €25 for the Trail 20K.
Tips
- •Ultra 100K: €90 / €100 / €105 by period
- •Trail 20K: €25 / €30 / €35
- •Non-federated runners pay €5 more; minimum age 24 for the 100K
Where to stay for Ultra 100K Sierra de Gata
AccommodationThe Sierra de Gata has stone villages with rural houses and small lodgings. As this is a first edition, check the official website for the start point and book early.
Tips
- •Rural houses in the mountain villages
- •Limited capacity: book with margin
- •Check the official website for the start town
Gear for Ultra 100K Sierra de Gata
GearA 100K with 5,436 m D+ demands full gear: grippy shoes, hydration vest, poles and a headlamp with spare batteries.
Tips
- •Headlamp and spare batteries for the night
- •Poles for the accumulated climbing
- •Check the mandatory gear in the official rules
Choosing trekking poles? Read our guide: Best trail running poles
See our complete buying guide: 5 foldable poles compared and tiered for trail running.
Which shoes for Ultra 100K Sierra de Gata?
Which footwear fits based on the race's terrain and weather
Which GPS watch for Ultra 100K Sierra de Gata?
Which watch has the battery to last based on your estimated finish time
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.
Best GPS Watches with Offline Maps 2026: Value Comparison
The best GPS watches with offline maps in 2026, ranked by value: Amazfit T-Rex 3, Suunto Race 2, Garmin Forerunner 570, Instinct 3 AMOLED, Coros Apex 2 Pro, Suunto Vertical 2 and Garmin Fenix 8. Maps vs breadcrumbs, the cheapest watch with maps and which to choose for your use.
Nutrition for Ultra 100K Sierra de Gata
NutritionOn the longest course (100 km) fuelling makes the difference. Combine gels, salts and something solid, and test it all on long runs before race day.
Tips
- •Gels every 40-45 minutes on long efforts
- •Salts or isotonic drink if it is hot or you sweat a lot
- •Carry your own reserve: do not rely only on aid stations
Getting to Sierra de Gata
TransportThe Sierra de Gata is in north-west Cáceres, near the Portuguese border.
Tips
- •Car: the practical way to reach the region
- •Madrid and Salamanca airports as a reference
- •Confirm the start and finish point on the official website
Car rental for Ultra 100K Sierra de Gata
Car RentalA car gives you the freedom to reach Sierra de Gata and move around the area before and after the race.
Tips
- •Book early for race weekend
- •Compare airport or station pick-up versus city pick-up
Sports insurance for Ultra 100K Sierra de Gata
InsuranceA mountain race with climbing and technical terrain: a federation licence or day insurance with rescue cover is advisable.
Tips
- •Federation licence or day insurance as required by the race rules
- •Rescue cover recommended on mountain terrain
- •If you travel from abroad, travel insurance covering sports
Sun protection for Ultra 100K Sierra de Gata
Sun ProtectionIn April the radiation is already strong on open mountain sections, and on a 100K you spend many hours in the sun.
Tips
- •SPF50 sweat-resistant, reapply during the race
- •Protect lips and ears
- •Sunglasses and cap for exposed sections
Body care for Ultra 100K Sierra de Gata
Body CareHours of running punish feet and skin. Anti-chafe, blister plasters and good recovery make the difference the next day.
Tips
- •Anti-chafe balm on underarms, thighs and feet
- •Blister plasters in your pack
- •Recover with compression socks and a massage afterwards
Frequently Asked Questions
- When is the Ultra 100K Sierra de Gata?
- The first edition is on 10 April 2027, in the Sierra de Gata (Cáceres, Extremadura).
- What distances and elevation does it have?
- Ultra 100K of 100 km with 5,436 m D+ according to the official website, and Trail 20K of 20 km with 400 m D+ according to the registration platform.
- How much does registration cost?
- Ultra 100K: €90 until 31 December 2026, €100 until 1 April and €105 until 7 April 2027. Trail 20K: €25, €30 and €35 in the same periods. Non-federated runners pay €5 more.
- What is the minimum age?
- 24 for the Ultra 100K and 18 for the Trail 20K.
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