Course in the calculator
Hardrock 100 Clockwise · 160K
Colorado, USA · 2026 edition · 158.9 km · +10,168 m · −10,168 m · measured at Low confidence
Try a target time on this course0 km · 2,838 mhigh point 4,277 m158.9 km
Pick a finish time and OTRI says what it would score, from the course and the time alone: the course is measured every 50 m and costed by gradient, and your speed over that flat-equivalent distance is compared with the fastest anyone has sustained over that much ground. How a score is made. This is a course for trying a target time, not a race page; results are never expected here.