For many runners, a marathon is the ultimate goal. But for those who find the 42.195 kilometers (yes, very specific) just not exciting enough, there’s a next step: ultrarunning. This extreme endurance sport is gaining popularity—and for good reason. But what exactly is it, and how do you train both your body and mind to take on this challenge? And how do you prepare for the Ultra Viking, an ultrarun with obstacles?

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What is Ultrarunning?

An ultramarathon — also known as an ultra — is any running race longer than a marathon, so anything beyond 42 kilometers. But ultrarunning is more than just “running farther”; it’s a mental and physical journey where endurance, perseverance, and strategy matter more than speed.

While a marathon fits within the framework of standard running training, an ultra requires a different approach. It’s slower, more technical, and often tougher due to terrain, distance, and duration.

Types of Ultramarathons

There are different types of ultramarathons, each with its own challenges and characteristics. Below we highlight the main categories:

 

1. Distance Ultras

In these events, you run a fixed distance—usually 50 km, 100 km, or 100 miles (160.9 km). These can take place on roads, tracks, or trails.

 

2. Timed Ultras

These races aren’t about covering a set distance but rather about how far you can run within a set time. Common formats are 6-hour, 12-hour, 24-hour, or even 48-hour events. They’re often run on looped courses, which requires strong mental endurance.

 

3. Trail Ultras

Held in nature, these races take runners across unpaved paths, through forests, over mountains, or even deserts. Elevation gain, tough terrain, and unpredictable weather turn these ultras into real adventures.

 

4. Stage Races

In stage races, you run a set distance each day over multiple days, with stages typically ranging from 20 to 80 kilometers per day. A well-known example is the
Marathon des Sables in the Sahara Desert.

 

5. Obstacle Ultra: Ultra Viking

This ultra obstacle run by Strong Viking is considered the toughest obstacle run in the world. You don’t just run 60 km—you also face over 135 obstacles! The
Ultra Viking combines the endurance of ultrarunning with strength, agility, and mental resilience.

ultra run obstacles ultra running

How to Train for an Ultramarathon

Ultrarunning is all about endurance, recovery, nutrition, and mental strength. It’s recommended to run at least one marathon before attempting longer distances. Here are the key components of your training:

 

1. Gradual Build-up

Increase your weekly mileage slowly—around 10% per week is a safe rule of thumb. Regularly include longer runs (e.g., 30–40 km) to help your body adapt to extended exertion.

 

2. Back-to-back Runs

Train with two long runs on consecutive days (e.g., 30 km on Saturday, 20 km on Sunday). This simulates fatigue and builds your endurance without doing excessively long sessions.

 

3. Slow is Good

Run at an easy pace (zone 2): this trains fat metabolism and energy efficiency. An ultra isn’t about speed—it’s about lasting the distance.

 

4. Practice Nutrition

Train your stomach: eat during long runs like you would during a race (energy gels, bars, fruit, sports drinks). What your gut can’t handle in training won’t work during the ultra either.

 

5. Strength and Core Training

Strong legs, back, and core help prevent injuries. Focus on exercises like core workouts, squats, lunges, planks, and hill training for both strength and technique.

 

6. Recovery is Key

Take rest days seriously, get enough sleep, and listen to your body. Overtraining is a real risk with ultra prep.

 

7. Mental Training

Occasionally run without music or on boring routes to boost mental toughness. Visualize completing the ultra—including the tough parts.

 

8. Train on Similar Terrain

Running a trail ultra? Train on unpaved, hilly terrain. Expect mud or altitude? Simulate that in your training too.

Training for the Ultra Viking

Are you taking on the ultimate challenge with Strong Viking’s Ultra Viking? Then you’re in for a grueling but unforgettable test: running, climbing, lifting, crawling, and pushing through more than 60 kilometers. And no, you won’t be running in a straight line — the course is packed with obstacles that demand strength, technique, and endurance. Solid preparation is absolutely essential.

 

Prepare for more than just running

Many participants focus mainly on running — understandable, since 60 km is no joke. But don’t underestimate the obstacles! Think about:

Train while fatigued

During Ultra Viking, there’s barely a moment to rest. You’ll be constantly moving: running, facing obstacles, and trudging through mud. So train for endurance under fatigue:

 

  • Back-to-back workouts (e.g., long run on Saturday, strength or trail run on Sunday)
  • Long, easy-paced runs in your weekly routine
  • Obstacle training while tired – simulate the switch from running to climbing

Fueling and recovery strategies are crucial

Your body needs to keep going for hours. Start practicing during training:

  • What you can eat on the go (gels, bars, bananas, salty snacks)
  • How often you need to drink
  • How to best recover after tough sessions (rest, nutrition, sleep)

Don’t forget your ticket!

The Ultra Viking is popular and often sells out fast. Want to secure your spot? Don’t wait too long to register. This isn’t an event you just “show up for” — it’s an achievement to be proud of, and it starts with proper training and getting your ticket on time.

GET YOUR TICKET NOW!