IRON VIKING - 42 KM
Fitness Level: Challenging | Average Finish Time: 6.5 Hours
For the die-hard Vikings out there, we present the Iron Viking! The toughest marathon in the world—42 km packed with over 100 obstacles. To make it even more intense, participants have just 7.5 hours to complete the course.
Some may call them crazy, but we call them LEGENDS. Are you ready to push your limits?
Iron Viking runners wear a green vest, making them stand out on the course. This vest gives them priority at certain obstacles—and often earns them a massive dose of applause and support from fellow participants and spectators!
Looking for an even greater challenge (yes… it gets tougher) or something a bit less intense? Check out all our obstacle run distances and choose the challenge that suits you best!
THE OBSTACLES
In addition to the 42 km you’ll run, over 100 obstacles await you… all within 7.5 hours! It’s the ultimate test of strength, endurance, and perseverance. Curious about the challenges that lie ahead? Below, you’ll find the most epic obstacles of Strong Viking – get ready for an unforgettable adventure!
UPCOMING IRON VIKING EVENTS
Obstacle Run
Fri 13 Sat 14 & Sun 15 June 2025
Wijchen
TRAINING FOR A MARATHON
During the Iron Viking of Strong Viking, you don’t have to run 42 km straight through like in a traditional marathon. Instead, you alternate between running and tackling challenging obstacles, making this run a truly unique experience. On average, it takes about 6.5 hours to complete. Want to be well-prepared for the start? Marathon training can be a solid foundation for this ultimate challenge!
USEFUL TIPS
At Strong Viking, you’re never alone, not even when preparing for the 42 km Strong Viking Run. Below, you’ll find helpful articles full of tips and tools to get you fully ready for your next challenge!
SPLASHING PHOTOS
