Photo: Isasa Trail Xtrem (opens in a new tab)Arnedo
Isasa Trail Xtrem
Sunday, 7 March 2027
Marathon
46km D+ 2600m
Half Marathon
23km D+ 1000m
Short Race
16km D+ 350m
Your checklist for Isasa Trail Xtrem
What you need, category by category, with our #1 pick for this race. Tick what you already have.
0 of 9 ready
Swipe to see all 10 categories
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GPS watch
Done, you already have it
View on Amazon →(opens in a new tab)Garmin Forerunner 570
Full-color topo maps, a first for the Forerunner line
Downside: Shorter battery life than a Forerunner 965 with maps on
Gear
Trail shoes with good grip: terrain mixes technical trails and tracks
Done, you already have it
View on Amazon →(opens in a new tab)Salomon Speedcross 6
Exceptional grip in mud and technical terrain
Downside: Average durability on pavement
Nutrition
The Marathon has aid stations every 3-4 km on average
Done, you already have it
View on Amazon →(opens in a new tab)Maurten Gel 100
Hydrogel technology: excellent gastric tolerance
Downside: High price compared to other gels
Sun Protection
Sweat-resistant sunscreen, essential for longer distances
Done, you already have it
View on Amazon →(opens in a new tab)ISDIN Fusion Water Sunscreen SPF 50+
Ultralight texture, feels invisible on skin
Downside: Small format (50 ml), may run short on ultras
Body Care
Apply anti-chafe cream, especially for the Marathon
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
La Rioja is compact: everything is within 1 hour by car
Done, you already have it
View on Amazon →(opens in a new tab)DRIVALIA CarCloud Country Plus
Mandatory
Charged mobile phone
Fully charged with emergency number saved
Done, you already have it
View on Amazon →(opens in a new tab)Generic Running Waist Pack with Phone Pocket
Mandatory
Reusable cup
For aid stations
Done, you already have it
View on Amazon →(opens in a new tab)Salomon Soft Flask 250 ml
High-flow valve: quick sips without hard biting
Downside: Pricier than generic Amazon flasks
Mandatory
Emergency whistle
Done, you already have it
View on Amazon →(opens in a new tab)Fox 40 Classic
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.
Seasonal kit
Cold weather at Isasa Trail Xtrem: pack the winter kit
Layers, gloves, neck gaiter and footwear for running in the cold, with short-race and ultra versions.
See the full kit : What to Wear for Cold-Weather Trail Running 2026: The Complete Layering KitMandatory Gear
According to the official race regulations
Charged mobile phone
Fully charged with emergency number saved
Reusable cup
For aid stations
Emergency whistle
Items tagged “Mandatory” are in the checklist above, with a recommended product.
Race data
Terrain
Trail
Difficulty
Intermediate
Distance
3 modalities
Marathon
Price: 50 EUR
- Distance
- 46 km
- Elevation Gain
- D+ 2600m
- Max Time
- 8h30
Half Marathon
Price: 30 EUR
- Distance
- 23 km
- Elevation Gain
- D+ 1000m
- Max Time
- -
Short Race
Price: 20 EUR
- Distance
- 16 km
- Elevation Gain
- D+ 350m
- Max Time
- -
| Modality | Distance | Elevation Gain | Max Time | Price |
|---|---|---|---|---|
| Marathon | 46 km | D+ 2600m | 8h30 | 50 EUR |
| Half Marathon | 23 km | D+ 1000m | - | 30 EUR |
| Short Race | 16 km | D+ 350m | - | 20 EUR |
Will your watch battery last the ~11 h of Isasa Trail Xtrem?Worked out for the longest course (46 km). See which watches reach the finish with GPS on and which die on the way.Check my watch Check my watchGet ready for Isasa Trail Xtrem with the 8-week plan
17 weeks to go: the 8-week plan starts in 9 weeks. Enter your date and it highlights your current week.
Week-by-week table with hill work, descents, strength and a taper, plus the right gear at each stage.
See the week-by-week planIsasa Trail Xtrem 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
Best Neck Gaiter (Buff) for Trail Running 2026: Comparison & Buying Guide
See comparison
Best Trail Running Headlamps 2026: 12 Models Compared
See comparison
Best GPS Watches with Offline Maps 2026: Value Comparison
See comparison
Best Trail Running Hydration Vests 2026: Comparison and Buying Guide
See comparison
Historical weather
What to wear at 10 °C: guide and kit →
Typical weather for the race date (10-year average)
Temperature
4°C – 12°C
Average 8°C
Rain
43%
2.1 mm avg
Wind
20 km/h
max. average
Sunshine hours
7h
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
Ultralight Gore-Tex Shakedry waterproof jacket (110 g). Full waterproofing without an inner membrane, highly breathable. The benchmark for mountain runners.
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
Ultralight waterproof windproof jacket (135 g). Taped seams, adjustable hood and back ventilation. Packs into its own pocket.
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.
Shokz
Shokz OpenRun
Open-ear bone conduction headphones with IP67 rating: they take rain, mud and a rinse under the tap. Up to 8 h of battery and quick charge (10 min for 1.5 h). The most rugged pick of the range for training in bad weather.
TRIWONDER
TRIWONDER Waterproof Trail Gaiters
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 4°C)
Buff
Buff Thermonet
Thermal tubular Buff with Primaloft technology. Traps body heat, ultralight and versatile: hat, neck gaiter, headband. Ideal for high mountain.
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 Thermal Neck Gaiter
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
Long-sleeve thermal base layer made from recycled fabric with anti-odour treatment. Active thermal regulation, ideal as a base layer in the mountains.
Odlo
Odlo I-Thermic Women's Longsleeve
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 Thermal Windproof Balaclava
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
Long trail tights with stretchy, breathable fabric. Adjustable waist, zipped back pocket. Protection from cold and vegetation.
Salomon
Salomon Cross Warm Glove
Thermal running gloves with a non-slip palm and touchscreen fingertips. Light, warm and compatible with poles.
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 (Men's)
Men's high-neck thermal compression top: brushed interior that holds heat and a quick-dry outer. Base layer for cold-weather runs.
Bring thermal gloves (low of 4°C)
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.
Icebreaker
Icebreaker Oasis Liners
Thin merino wool glove, lightweight and breathable, with good moisture management and none of the overheating of a thick technical glove. Ideal as a liner layer or for mild winter temperatures.
LEKI
LEKI Ultra Trail Storm Shark
Glove for pole runners with the Shark system: clips straight into the grip of compatible LEKI poles, transferring force without closing your hand. Windproof and water-repellent.
Ronhill
Ronhill GORE-TEX Windstopper Glove
Running glove with GORE-TEX Windstopper fabric: blocks wind and repels light rain without the bulk of an insulated glove. Thin, close-fitting and dexterous.
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 Cross Warm Glove
Thermal running gloves with a non-slip palm and touchscreen fingertips. Light, warm and compatible with poles.
Salomon
Salomon Fast Wing Winter Glove
Technical winter trail running glove with a windproof outer shell and warm lining. Built for long outings in intense cold, wind and some moisture in the mountains.
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.
Consider long tights for nighttime cold
Amazon Essentials
Amazon Essentials Active Sculpt Plus-Size Leggings
High-waisted leggings with Active Sculpt compression fabric, available in plus sizes. Wide waistband that doesn't roll down or over-compress during long mountain outings.
HANKER
HANKER Women's Cropped Compression Leggings with Pockets
Compression capri tights with high waist and phone pockets. Quick-drying, suitable for running and trail.
Izas
Izas Olimpia Women's Long Tights
Women's long leggings with a shaping, push-up compression effect, stretch breathable fabric and reflective details. Originally designed for gym and yoga, but the compression and reflective details also make it usable for low-light running.
Joma
Joma Academy Knight Men's Thermal Tights
Men's thermal pants with a brushed inner lining, built for training and running in cold weather. Elastic drawstring waist and heat-retaining fabric for winter outings or cold early mornings.
Joma
Joma Vela II Women's Shorts
Lightweight, stretch women's running shorts with a wide size range (4XS to 2XL). Breathable fabric built for training and running in summer without overheating.
Salomon
Salomon Comet Warm Tight W
Salomon women's thermal long tights for training and racing in the cold. A warm layer for autumn and winter.
Salomon
Salomon Cross Run Tight
Long trail tights with stretchy, breathable fabric. Adjustable waist, zipped back pocket. Protection from cold and vegetation.
Forecast for 7 March
Weather forecast from Open-Meteo (may change until race day)
Isasa Trail Xtrem
The Isasa Trail Xtrem was born from the passion of a group of runners for the trails around Arnedo, La Rioja’s shoe-making capital and home of the Atom brand. In its third edition, this race has established itself as a key event in the Riojan trail calendar.
The course
From the center of Arnedo, all three distances head into the surrounding mountains. The routes reveal spectacular and lesser-known paths, combining ravines, ridgelines, and trails winding through vineyards and Mediterranean scrubland.
- Marathon (46K) — 2,600m elevation gain, the flagship event. Start at 8:00 AM. Cutoff points at Préjano (10:30), Turruncún (13:15), Valdeherreros (14:00), and finish (16:30).
- Half Marathon (23K) — 1,000m elevation gain, a demanding challenge with the best race profile. Start at 9:00 AM. No cutoff times.
- Short Race (16K) — 350m elevation gain, the gateway to trail running. Start at 9:15 AM. No cutoff times.
A Nordic Walking event (16K) also takes place on the same course as the Short Race.
Terrain and difficulty
The terrain is varied: mountain trails, forest tracks, ravines, and some stretches through vineyards. The Marathon includes the most technical sections with steep climbs and descents. The 16K Short Race is ideal for newcomers to trail, with a gentle and well-marked profile. Review our gear checklist to make sure you have everything you need for race day.
March weather in Arnedo
March in La Rioja marks the transition from winter to spring. Temperatures range from 5 to 15°C, with cool mornings and pleasant middays. Wind can blow on the ridgelines, and occasional rain showers are possible. A light rain jacket is a recommended companion.
Arnedo and La Rioja
Arnedo is Spain’s shoe-making capital, with a centuries-old footwear industry and home to brands like Atom. Beyond industry, the city offers historical heritage and Riojan gastronomy. La Rioja is a perfect destination to combine trail running with wine tourism: wineries, charming villages, and world-class cuisine.
Use our pace calculator to plan your splits for the Marathon 46K, and explore more races in La Rioja.
360Complete Pack
Isasa Trail Xtrem 2026 Registration
RegistrationThird edition sponsored by Atom. Bibs include a Trango finisher garment (worth €110) for the Marathon and a Trango t-shirt (€39) for all distances.
Tips
- •The first 150 Marathon registrants receive Biontech insoles (€30)
- •Bib collection on Saturday March 7 from 11:00 to 14:00 and 15:00 to 19:00, or Sunday from 6:45
- •Briefing on Saturday at 19:30
Where to stay in Arnedo
AccommodationArnedo has hotels and rural houses. Being a small city, book early for race weekend.
Tips
- •Arnedo's town center has accommodation within walking distance of the start
- •March is low season in La Rioja, generally good availability
- •Calahorra (15 min) and Logroño (50 min) are alternatives if Arnedo is full
Recommended gear for the Isasa Trail Xtrem
GearSpring race through the Riojan mountains. Varied terrain with trails, tracks, and ravines. March weather can be changeable.
Tips
- •Trail shoes with good grip: terrain mixes technical trails and tracks
- •Light rain jacket in case March weather turns
- •For the Marathon, bring a headlamp: start is at 8:00 but the slowest may finish at dusk
- •Trekking poles recommended for the Marathon's 2,600m elevation gain
Which shoes for Isasa Trail Xtrem?
Which footwear fits based on the race's terrain and weather
Which GPS watch for Isasa Trail Xtrem?
Which watch has the battery to last based on your estimated finish time
Best Neck Gaiter (Buff) for Trail Running 2026: Comparison & Buying Guide
Comparison of the best neck gaiters for trail running in 2026: Buff Original, Midweight, Windproof, DryFlx, CoolNet UV+, Thermonet, HANKER and Salomon Merino. Which to pick based on sun, wind, cold or budget.
Best Thermal Base Layer for Trail Running 2026: Comparison & Buying Guide
The best thermal base layers for trail running in 2026: Odlo Active Warm Eco, Icebreaker Merino 200 Oasis, Craft Pro Hypervent, Under Armour ColdGear, Salomon Agile LS Tee and Odlo I-Thermic. Which to pick based on cold, sweat management, merino wool, compression or built-in wind protection.
Best Trail Running Gaiters 2026: 3-Way Comparison
Comparing the 3 best trail running gaiters in 2026: Salomon Trail Gaiters High, Salomon Trail Gaiters Low and TRIWONDER waterproof gaiters. Which to pick by terrain and budget.
Nutrition plan for the Isasa Trail Xtrem
NutritionWell-distributed aid stations across all three distances with liquids and solids. The Marathon has 11 aid stations.
Tips
- •The Marathon has aid stations every 3-4 km on average
- •Carry your own gels and bars as backup for longer distances
- •Stay hydrated even though March weather is cool
How to get to Arnedo
TransportArnedo is well connected via the AP-68 motorway from Logroño and Zaragoza.
Tips
- •From Logroño: 50 min via the AP-68
- •From Zaragoza: 1h 30min via the AP-68
- •From Madrid: 3h 30min via the A-2 and N-232
- •From Bilbao: 2h via the AP-68
Car rental in La Rioja
Car RentalA car lets you explore the wine region and mountain ranges before and after the race.
Tips
- •La Rioja is compact: everything is within 1 hour by car
Sports insurance for the Isasa Trail Xtrem
InsuranceValid sports insurance is required to participate. A federation license or day insurance covers the requirement.
Tips
- •Valid insurance is required on race day
- •If you don't have a federation license, you can get day insurance
- •Mountain rescue coverage recommended for the Marathon
Body care for the Isasa Trail Xtrem
Body CareSpring race with mild weather but possible wind on ridgelines.
Tips
- •Apply anti-chafe cream, especially for the Marathon
- •A light buff protects from wind on the ridges
Sun protection for the Isasa Trail Xtrem
Sun ProtectionIn March UV radiation is already significant, especially during midday hours.
Tips
- •Sweat-resistant sunscreen, essential for longer distances
- •Protect your lips with SPF balm
Frequently Asked Questions
- When is the Isasa Trail Xtrem 2026?
- The III Atom Isasa Trail Xtrem takes place on March 7-8, 2026, with the races on Sunday March 8. Bib collection and briefing are on Saturday March 7.
- What distances does the Isasa Trail Xtrem offer?
- Three trail running distances: Marathon 46K (2,600m elevation gain), Half Marathon 23K (1,000m elevation gain), and Short Race 16K (350m elevation gain). There is also a 16K Nordic Walking event.
- Is it suitable for beginners?
- The 16K Short Race with 350m elevation gain is accessible for runners new to trail. The Half Marathon requires mountain running experience, and the Marathon is for advanced runners.
- How do I get to Arnedo?
- Arnedo is 50 minutes from Logroño via the AP-68 and 1h 30min from Zaragoza. The nearest airports are Logroño-Agoncillo (RJL) and Zaragoza (ZAZ).
- How much does registration cost?
- Prices are €50 for the Marathon, €30 for the Half Marathon, and €20 for the Short Race. The first 150 Marathon registrants receive Biontech insoles worth €30.
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