Gritty Soldier Challenge - THE LEGION MARCH

THE LEGION MARCH (Iter Legionis)

18.4 Miles, 45lbs, 6 Hours.
A Modern Challenge Built on an Ancient Standard.

This is a Virtual Event. International Challengers are welcome!

*REGISTRATION CLOSED, participant capacity reached.

Why the LEGION MARCH?

The Legion March is a Gritty Soldier Challenge inspired by the historical marching requirements of the Roman Legions. Roman legionaries were expected to cover long distances to arrive early to the battlefield. During initial training of a Roman legionary, loaded marches were taught before recruits ever handled a weapon. Recruits were required to complete 20 Roman miles (18.405 modern miles or 29.62 km) within 20.5 kg in five summer hours (approx. 6 modern hours) which was known as "the regular step" or "military pace". They did this while carrying their full kit, weaponry, and armor, weighing about 45 lbs / 20.5 kg. 

This Challenge honors the ancient standards of the Roman Legions, with a modern adaptation.

Challengers must complete the full distance of 20 Roman Miles (18.4 modern miles / 29.6 km) with a weighted ruck or vest in on continuous movement within 6 hours to successfully complete this challenge and be deemed a Gritty Soldier "Legionnaire."

CHALLENGE REQUIREMENTS

• Distance: 18.4 modern miles / 29.6 km (20 Roman miles) *This can be completed outdoors or on a treadmill, must track GPS or treadmill distance and submit
• Carried Weight: 45 lbs / 20.5 kgs with a rucksack or weighted vest or any backpack (water and food is included in the measured weight). Must take a photo of ruck weight to be submitted with results!
• Time Limit: 6 hours. All miles must be completed within a single 6-hour window
• Tracking: One continuous GPS or tracked treadmill movement showing the full completed distance,

Timeline

🗓️ Challengers must complete the Challenge any time within the event window (11 April - 26 April 2026). Once the first mile begins, their 6-hour clock is active. Challengers may conduct multiple attempts within the event window, but only ONE results submission will be accepted.

🚨 Must submit results through the results form no later than 30 April 2026 to be validated. Results will be submitted through the RESULTS FORM (will be available upon the event start date). This ensures proper validation. If submitted late, it will not be accepted!

HOW TO SUBMIT RESULTS (Verification requirements): 

Reference the “Verification Process” page and make sure you understand all!

AWARDS

Challengers who successfully complete THE LEGION MARCH will earn:

🪙 Unique LEGION MARCH Challenge Coin

🪖 LEGION MARCH Challenge Dog Tag (to collect along other Challenges)

📜 LEGION MARCH Certificate of Completion

⚔️ GS-Challenge LEGIONARY title

PRIZES

There are MANY AWESOME prizes for high-performers! Check the details HERE!

🙋‍♂️ If you have any questions, contact Challenge Staff using the contact form at the bottom of this page!