Master the Wildstrubel 72K: Complete Training & Race Preparation Guide

A comprehensive guide to preparing for one of the Alps' most demanding 72km mountain ultras, featuring periodized training, altitude strategy, and expert race-day tactics.

72.0km
International

Understanding the Wildstrubel 72K Challenge

The Wildstrubel 72K represents one of the Alps' premier alpine running challenges, demanding exceptional endurance capacity and mountain-specific fitness. At 72 kilometers, this race sits squarely in the ultra-distance category, requiring a fundamentally different training approach than standard marathons. The course traverses technical trail and mountain terrain, with significant elevation gain that will test both your aerobic capacity and mental resilience. The combination of distance and elevation means that success depends equally on physical preparation and smart pacing strategy. Unlike road ultras where you can maintain consistent effort, the Wildstrubel demands the ability to move efficiently on steep climbs, navigate technical descents, and manage energy depletion across an extended effort. This is a race where proper training beats raw talent, and where understanding your specific weaknesses becomes your competitive advantage.

  • 72km distance requires ultra-specific aerobic and muscular endurance adaptations
  • Technical trail terrain demands balance, footwork, and mental focus on technical sections
  • Elevation gain creates cumulative fatigue that affects pacing strategy throughout the race
  • Altitude considerations may affect acclimatization and fuel absorption during the effort
  • Check the official Wildstrubel 72K website for current course details, elevation profile, and aid station information

The Wildstrubel 72K Training Timeline: 24-Week Periodized Plan

Preparing properly for the Wildstrubel 72K requires a structured 24-week training block that progressively builds your aerobic base, introduces altitude-specific adaptations, and develops the mental toughness required for extreme endurance. The training plan is divided into four distinct phases, each serving a specific purpose in your development. Your preparation should begin with an honest assessment of your current fitness level and recent racing history. If you've completed other 70km+ ultras or significant mountain races, you can maintain higher baseline fitness. If this represents a step up in distance or elevation, you'll need additional base-building weeks. The periodized approach ensures you're fresher and more powerful on race day, not exhausted from months of excessive training. Throughout this 24-week journey, consistency matters more than peak weeks; runners who complete 85% of planned workouts typically perform better than those who do 100% of workouts by running extra volume on top of the plan.

  • 24-week training cycle divided into Base, Build, Peak, and Taper phases
  • Progressive volume increases prevent injury while building race-specific fitness
  • Altitude training or simulated altitude work should begin 12-14 weeks before race day
  • Weekly long runs build from 20km to 40km+ over the training cycle
  • Flexibility within the plan allows for individual recovery needs and life circumstances

Phase 1: Aerobic Base Building (Weeks 1-6)

The foundation of any successful ultra is an extensive aerobic base, and the Wildstrubel 72K demands this more than shorter ultras. During these initial six weeks, your focus is on consistent, zone-2 running that builds mitochondrial density, teaches your body to burn fat efficiently, and establishes the weekly volume you'll maintain throughout training. This phase is deliberately conservative with intensity; 80-85% of your running should feel conversational and sustainable. Long runs during this phase build from 16km to 22km, completed at a relaxed pace that allows you to recover fully within 48 hours. The emphasis on base-building is particularly important for the Wildstrubel 72K because the technical terrain and elevation gain demand extensive aerobic capacity; runners with poor aerobic bases struggle on climbs and often hit walls in the second half of the race. Your weekly volume should build gradually to 50-60km per week by week six, setting up the harder training ahead. Many runners make the mistake of introducing intense work too early, but proper base-building ensures you can handle the subsequent peak training without overuse injuries.

Phase 2: Build & Strength Development (Weeks 7-16)

Once your aerobic base is established, the build phase introduces the specific workouts that prepare you for Wildstrubel's demands. This 10-week block emphasizes hill repeats, tempo running, altitude-specific training, and progressive long runs that now incorporate elevation gain. Mountain running demands significantly more leg strength than road running, and the build phase develops the muscular endurance needed to move efficiently on climbs and maintain control on technical descents. During this phase, you'll introduce 1-2 hill-focused workouts per week, with repeats ranging from 5-15 minutes depending on the specific week. Your long runs should now include cumulative elevation gain of 1,000-1,500 meters, building progressively toward race-specific demands. If possible, complete some long runs on trail terrain similar to what you'll encounter; if local mountains aren't available, hill repeats and altitude simulation become more critical. Peak weekly volume should reach 70-80km by week 14, with intensity distributed across multiple workouts. This phase is where most training adaptations occur, but it's also where inadequate recovery leads to burnout; ensure you're sleeping 7-9 hours nightly and managing stress outside of running.

Phase 3: Peak Training & Specificity (Weeks 17-22)

The peak phase emphasizes race-specific workouts that simulate Wildstrubel's unique demands: sustained climbing, technical descent work, and the mental fortitude required for 10+ hour efforts. Your long runs now build toward 40km+ with significant elevation gain, replicating the back-half race conditions. One of your weekly workouts should focus on sustained climbing (90+ minutes on moderate to steep grades), while another incorporates technical trail work and descending practice. This is also the phase where fueling strategy becomes critical; your long runs should use the exact nutrition plan you'll employ on race day, ensuring your stomach tolerates your food and drink choices. Mental preparation intensifies during this phase; use challenging workouts as opportunities to practice positive self-talk and develop strategies for the inevitable low moments during the race. By week 22, you should feel strong and confident, having completed multiple 35-40km efforts with elevation. Peak weekly mileage of 80-90km should feel manageable, indicating that your aerobic capacity has expanded significantly. Some runners report feeling invincible during this phase; resist the temptation to add extra volume or attempt personal records on secondary efforts.

Phase 4: Taper & Race Preparation (Weeks 23-24)

The final two weeks before the Wildstrubel 72K involve significant volume reduction while maintaining intensity and freshness. Week 23 sees a 40-50% reduction in volume, dropping to 40-50km of running with shorter, faster efforts that keep your legs sharp without creating fatigue. All long runs end by week 22; the final two weeks focus on maintenance and mental preparation. During taper, many runners experience doubt and anxiety, questioning whether their training was sufficient. This is normal and typically indicates your body is recovering; trust the process and avoid the temptation to squeeze in extra workouts. Your taper should include one final tempo effort around week 23 to confirm your fitness, but nothing longer than 20-25km. The final week involves only easy running, with race-week efforts limited to short activation runs of 2-3km. Rest and recovery during taper are active processes; ensure you're sleeping well, managing stress, and mentally rehearsing race scenarios.

Wildstrubel 72K Training Plan Overview

A 24-week training plan designed specifically for the demands of Wildstrubel 72K.

Aerobic Base Building

6 weeks

Consistent zone-2 running, establishing weekly volume, building aerobic capacity

Peak: 60km/week

Build & Strength Development

10 weeks

Hill repeats, strength work, altitude training, progressive long runs with elevation

Peak: 80km/week

Peak Training & Specificity

6 weeks

Race-specific workouts, sustained climbing, technical descents, 35-40km efforts, nutrition practice

Peak: 90km/week

Taper & Race Preparation

2 weeks

Volume reduction, intensity maintenance, mental preparation, recovery optimization

Peak: 50km/week

Key Workouts

01Long runs with elevation gain (builds to 40km+ with 1,500m+ climbing)
02Sustained climbing repeats (90+ minutes on moderate-to-steep grades for altitude adaptation)
03Technical trail work and descent practice (builds balance and confidence on technical terrain)
04Tempo runs at race-pace effort (maintains lactate threshold and mental confidence)
05Hill repeats of varying length (5-15 minute repeats build muscular endurance specific to climbing)
06Back-to-back weekend efforts (trains body to run strong when fatigued, simulates race conditions)
07Altitude training or simulated altitude work (enhances aerobic capacity and oxygen utilization)
08Movement efficiency drills on technical terrain (improves footwork and reduces injury risk on technical sections)

Get a fully personalized Wildstrubel 72K training plan tailored to your fitness, schedule, and goals.

Wildstrubel 72K Race Day Tips

  1. 1Start conservatively—the Wildstrubel 72K pace should feel almost embarrassingly easy in the first 15km; positions are won and lost in the second half, not the first quarter
  2. 2Master the descents: technical terrain demands focus and confidence; practice aggressive descent technique during training to gain time while others are cautious
  3. 3Fuel early and often: don't wait until you're hungry; maintain consistent nutrition intake throughout the race to avoid the dramatic energy crashes common in ultras
  4. 4Manage the climbing mentally: break long climbs into 10-minute segments rather than focusing on the summit; celebrate each segment to maintain motivation
  5. 5Layer appropriately for temperature swings: alpine conditions change rapidly; carry a lightweight jacket and adjust layers before you're cold, not after
  6. 6Know your crew/pacer responsibilities: if using support, brief them on your pace targets, nutrition preferences, and how to recognize real problems versus normal ultra complaints
  7. 7Practice your aid station strategy: know exactly what you'll consume at each station; hesitation and decision-making at aid stations costs valuable time and mental energy
  8. 8Manage the darkness if the race extends into evening: ensure proper headlamp batteries, test your lighting setup, and mentally prepare for the psychological shift when darkness falls

Essential Gear for Wildstrubel 72K

Trail running shoes with aggressive tread and ankle support rated for technical mountain terrain
Ultra-specific hydration pack (3-4L capacity) that won't cause chafing during 10+ hour efforts
Drop-bag supplies for mid-race kit changes, additional nutrition, and weather adjustments
Lightweight insulating layer (down or synthetic) for altitude and temperature swings
Weather-appropriate outer shell that protects without trapping excess moisture from sweat and condensation
High-quality socks designed for extended running; consider merino wool for moisture management and temperature regulation
Trekking poles or running-specific poles to reduce impact on climbs and downhill sections
Headlamp with spare batteries if race extends into darkness or early morning hours
Lightweight first-aid kit including blister treatment, pain relief, and anti-chafe products
Electrolyte supplements and fuel specifically tested during training; never rely on race-day aid station supplies without prior testing

Frequently Asked Questions

How much elevation gain is in the Wildstrubel 72K course?
The specific elevation gain for the Wildstrubel 72K is not listed in current race data. Check the official Wildstrubel UTMB World website (https://wildstrubel.utmb.world) for the exact elevation profile, which is crucial information for training planning and race strategy.
What's the best training approach if I've never run 72km before?
If you're new to 72km distance, prioritize base-building and long-run progression above all else. Spend 8-10 weeks establishing a strong aerobic base before introducing intense work. Your longest training run should reach 35-40km with similar elevation gain to the race. Consider completing a 50-60km ultra before attempting Wildstrubel 72K; the experience teaches you critical pacing and nutrition lessons that are difficult to learn in training alone.
Should I train at altitude before the Wildstrubel 72K?
Altitude training is beneficial if accessible and time permits. Either 2-3 weeks at elevation 4-6 weeks before the race, or living at altitude year-round provides advantages. If mountain altitude isn't accessible, simulated altitude training or sleeping in altitude tents can provide partial benefits. Ensure you're fully acclimatized and recovered before the race; arriving at elevation 3-5 days before race day allows reasonable acclimatization without residual fatigue.
What's the ideal race-day pacing strategy for 72km with significant elevation?
The Wildstrubel 72K demands a disciplined pacing approach: treat climbing sections as effort-based rather than pace-based, maintaining a consistent heartrate or effort level regardless of incline. On technical descents, prioritize control and safety over speed. The first 25km should feel conservative; many runners find their race is won or lost between km 45-60 when fatigue accumulates. Train your perceived exertion to match your target pace so you can gauge effort without relying on pace, which becomes unreliable on variable terrain.
How should I fuel during the Wildstrubel 72K?
Practice your fueling strategy extensively during training long runs. Aim for 200-250 calories per hour after the first two hours, with a mix of carbohydrates and some electrolytes. Alternate between solid food (energy bars, gels, chews) and liquid calories to prevent flavor fatigue. Test your stomach's tolerance to everything before race day; many runners find that consistency matters more than perfect nutrition. Drink to thirst for hydration, checking urine color as a secondary indicator.
What's the typical finish time for competitive runners at Wildstrubel 72K?
Finishing times depend on individual fitness, the elevation profile, and trail conditions. Check the official race website (https://wildstrubel.utmb.world) for historical results and median finish times. This information helps you set realistic goals and understand what training volume and intensity will be required. Remember that the Wildstrubel 72K, as a mountain ultra, will be significantly slower per-kilometer than road 70km races due to terrain difficulty.
Should I use trekking poles for the Wildstrubel 72K?
Trekking poles are highly recommended for the Wildstrubel 72K's technical mountain terrain and elevation gain. They reduce impact on your knees and hips on descents, provide propulsion on climbs, and help with balance on technical sections. Train extensively with poles during your build and peak phases to develop proper technique and muscle memory. Many runners report poles add 15-30 minutes to their finish time compared to running without them, but the injury prevention benefit often outweighs the time cost, especially for less experienced mountain runners.
How do I prepare mentally for 10+ hours of mountain running?
Mental preparation is equally important as physical training. Practice visualization of race scenarios during training, developing mental strategies for low moments. Break the race into smaller segments (aid station to aid station, climb to climb) rather than focusing on the entire distance. Develop a repertoire of positive self-talk for specific challenges. Use your challenging training workouts as mental laboratories, practicing the same mantras and strategies you'll deploy on race day. Consider that most runners hit a low point around km 50-55; expect this and have mental tools ready to push through it.

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