Photo: User:Gemini1980 / Wikimedia Commons (Public domain) / Source (opens in a new tab)Grenoble
Ultra Tour des 4 Massifs
Thursday, 15 July 2027estimated date
Ut4M 180 Xtrem
176km D+ 11590m
Ut4M 100 Master
94km D+ 5694m
Ut4M 40 Vercors
44km D+ 3006m
Ut4M 20
20km D+ 1200m
Race data
Terrain
Mountain
Difficulty
Elite
Distance
4 modalities
Ut4M 180 Xtrem
- Distance
- 176 km
- Elevation Gain
- D+ 11590m
- Max Time
- -
Ut4M 100 Master
- Distance
- 94 km
- Elevation Gain
- D+ 5694m
- Max Time
- -
Ut4M 40 Vercors
- Distance
- 44 km
- Elevation Gain
- D+ 3006m
- Max Time
- -
Ut4M 20
- Distance
- 20 km
- Elevation Gain
- D+ 1200m
- Max Time
- -
| Modality | Distance | Elevation Gain | Max Time | Price |
|---|---|---|---|---|
| Ut4M 180 Xtrem | 176 km | D+ 11590m | - | - |
| Ut4M 100 Master | 94 km | D+ 5694m | - | - |
| Ut4M 40 Vercors | 44 km | D+ 3006m | - | - |
| Ut4M 20 | 20 km | D+ 1200m | - | - |
Will your watch battery last the ~57 h of Ultra Tour des 4 Massifs?Worked out for the longest course (176 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 Tour des 4 Massifs
What you need, category by category, with our #1 pick for this race. Tick what you already have.
0 of 7 ready
GPS watch
Done, you already have it
View on Amazon →(se abre en una pestaña nueva)Garmin Enduro 3
Reference battery life: 120 h GPS / 60 h multi-band
Downside: MIP display less vivid than an AMOLED
Gear
Shoes with aggressive lugs for rock and mud
Done, you already have it
View on Amazon →(se abre en una pestaña nueva)
Hoka Speedgoat 7
Max Hoka cushioning: protects your legs over long distances
Downside: High stack: less stable for those who want more ground feel
Nutrition
A gel every 40-45 minutes from the start
Done, you already have it
View on Amazon →(se abre en una pestaña nueva)
Maurten Gel 100
Tecnología de hidrogel: excelente tolerancia gástrica
Downside: Precio elevado respecto a otros geles
Sun Protection
Sweat-resistant SPF50, reapply every 2-3 hours
Done, you already have it
View on Amazon →(se abre en una pestaña nueva)
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 on feet, armpits and groin
Done, you already have it
View on Amazon →(se abre en una pestaña nueva)
BodyGlide Original Anti-Chafe Balm
Easy-to-apply stick format, even with sweaty hands
Downside: Higher price than traditional petroleum jelly
Accommodation
Book as soon as you have a bib: availability goes fast
Done, you already have it
View on B-Hotel →(se abre en una pestaña nueva)
B-Hotel Barcelona
Car Rental
Pick up the car at Lyon (LYS)
Done, you already have it
View on Amazon →(se abre en una pestaña nueva)
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 Ultra Tour des 4 Massifs
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
16°C – 27°C
Average 22°C
Rain
33%
2.0 mm avg
Wind
10 km/h
max. average
Sunshine hours
13h
daily average
Gear recommendations
Bring a waterproof jacket (33% 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.
Sun protection essential (13h sunshine, up to 27°C)
Forecast for 15 July
Weather forecast from Open-Meteo (may change until race day)
Ut4M: around Grenoble
Each massif is a stage: run them separately or link them up. July heat in the valleys and cold on the summits: light layers, water and sun protection.
Check our gear guides and other races in France.
360Complete Pack
Ultra Tour des 4 Massifs registration
RegistrationLimited places and strong international demand. Register on the official website as soon as it opens.
Tips
- •Check the official website for the registration opening date
- •France requires a medical certificate or PPS if you don't hold an FFA licence
- •Review the mandatory gear list before travelling
Where to stay for Ultra Tour des 4 Massifs
AccommodationGrenoble fills up on race weekend. Book months ahead and stay close to the start.
Tips
- •Book as soon as you have a bib: availability goes fast
- •Nearby villages are cheaper if you have a car
- •Earplugs and eye mask for sleep before an early start
Gear for Ultra Tour des 4 Massifs
GearAlpine terrain with big climbs: grippy shoes, poles, hydration vest, waterproof jacket and a headlamp if you run at night.
Tips
- •Shoes with aggressive lugs for rock and mud
- •Poles save your legs on long climbs
- •Waterproof jacket with taped seams (usually mandatory)
- •Headlamp with a spare battery for the long distances
Which shoes for Ultra Tour des 4 Massifs?
Which footwear fits based on the race's terrain and weather
Which GPS watch for Ultra Tour des 4 Massifs?
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 Ultra Tour des 4 Massifs
NutritionMany hours of mountain effort: plan gels, salts and solid food from the first kilometre.
Tips
- •A gel every 40-45 minutes from the start
- •Electrolytes if it's hot or you sweat a lot
- •Alternate sweet and savoury on ultra distances
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 Ultra Tour des 4 Massifs
TransportThe most practical airport is Lyon (LYS). From there, train, bus or car to Grenoble.
Tips
- •Fly to Lyon (LYS) early: prices rise close to the date
- •Check the organisers' official shuttles
- •Driving is a good option if travelling as a group
Car rental for Ultra Tour des 4 Massifs
Car RentalA car gives you freedom between start, finish and accommodation, and lets you recce the course.
Tips
- •Pick up the car at Lyon (LYS)
- •Mountain roads: drive carefully after the race
Insurance for Ultra Tour des 4 Massifs
InsuranceMountain race abroad: a rescue can cost thousands of euros. Travel with sports cover.
Tips
- •European Health Insurance Card at minimum
- •Insurance with mountain rescue and evacuation
- •Cancellation cover for injury
Body care for Ultra Tour des 4 Massifs
Body CareClimbing and long hours punish feet and skin. Prevent blisters and chafing before the start.
Tips
- •Anti-chafe on feet, armpits and groin
- •Blister plasters in your pack
- •Compression socks for recovery
Sun protection for Ultra Tour des 4 Massifs
Sun ProtectionUV radiation is much stronger at altitude. Sweat-resistant SPF50 and lip protection.
Tips
- •Sweat-resistant SPF50, reapply every 2-3 hours
- •Lip balm with SPF
- •Category 3 sunglasses
Best Sunscreen for Runners 2026: 7 Sweat-Proof SPF 50 Picks
Which sunscreen survives a sweaty long run? We tested 7 SPF 50 sweat-proof picks — creams, sticks and a lip balm — against heat, altitude UV and hours of sweat. See the winner.
Frequently Asked Questions
- When is the next edition?
- The 2026 edition ran 16-19 July. 2027 is expected in mid-July (estimated).
- What distances are there?
- 14 formats: from 20 km to the 180 Xtrem (176 km, 11,590 m D+), including the 100 Master (94 km, 5,694 m D+) and 40 Vercors (44 km, 3,006 m D+).
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