Trail Ultra (50K)
The 50K is the gateway to ultra running — just 4.9 miles beyond a marathon, but the terrain changes everything. Trail ultras trade road monotony for singletrack, elevation gain, and self-sufficiency. Grand Canyon Rim-to-Rim and local 50Ks offer a first taste of what lies beyond the marathon distance, where 45% of participants are over 40.
Elevation Gain
1,500m
Best Seasons
Spring, Autumn
Region
Worldwide
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Prerequisites
Complete these adventures first to build the fitness, skills, and experience this adventure demands.
Marathon endurance is the foundation before adding trail terrain and distance.
Demand Profile
Requirements Breakdown
Booking Info
Book 3+ months ahead
Popular trail ultras fill quickly. Register 3-6 months ahead.
Want to add Trail Ultra (50K) to your plan?
Add it to your plan and we'll sequence it into a progressive multi-year roadmap based on difficulty.