Course in the calculator
Phuket Trail · 25K
Phuket, THA · 2026 edition · 27.3 km · +1,230 m · −1,230 m · measured at Low confidence
Try a target time on this course0 km · 20 mhigh point 458 m27.3 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.