On Sunday, March 12, 2023, more than 14,000 athletes will compete in the 53rd edition of the Engadin Skimarathon, the second largest cross-country skiing event in the world and the largest cross-country skiing event in Switzerland. Among the large crowd of participants are also world-class runners. What awaits them on this day in the high valley are 42 strenuous kilometers over frozen lakes, past typical Engadine villages and through a picturesque Swiss Alpine landscape. The best will complete the course in a time of around 1.5 hours.