Course in the calculator
Western States 100 · 160K
California, USA · 2026 edition · 157.0 km · +6,147 m · −7,654 m · measured at Low confidence
Try a target time on this course0 km · 1,901 mhigh point 2,648 m157.0 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.