Sport

Complete a 100-Mile Ultra

52 weeks · 0 milestones

Finish a 100-mile ultramarathon event. Official finisher buckle photo and results page as proof.

Milestone map

3 milestones

Establish your ultra credentials by completing a 50-mile or 50K race within the 18 months preceding your 100-mile attempt. Most major 100-milers require this as an entry qualification. It also provides a realistic time predictor for your first 100.

Proof required

Submit: official finisher certificate or race results page showing your name, the 50-mile or 50K distance, and finish time.

What gets checked

Result is from a named race listed on UltraSignup or an equivalent national race calendar
Finish time is shown — a Did Not Finish (DNF) does not satisfy this milestone
Race distance is clearly stated as 50K or 50 miles — marathon results do not qualify

Resources

Enroll free to unlock learning resources →

Mastery

Relentless Forward Progress

Covers the 50K-to-100-mile progression in full detail

Unlocks after completing Foundation + Depth