This weekend, from September 25 to 27, the city of Nice hosted the Ultra-Trail du Mont-Blanc (UTMB), a prestigious long-distance running event that takes place just under a month after the original UTMB race in Chamonix. The event is known for its challenging terrain, which includes mountainous trails and high altitudes, and attracts athletes from around the world. In the main 100-mile race, French runner Clement Desille narrowly secured the victory among the men's category. His win was closely contested, highlighting the competitive nature of the event. Desille's performance marked a significant achievement in the world of ultra-running, a sport that tests endurance and resilience over extreme distances. Among the women's category, Polish athlete Martina Klancnik Potrc dominated the race, showcasing her strength and skill on the demanding course. Her victory was notable not only for her personal achievement but also for the level of competition she faced from other elite runners. The UTMB is part of a larger series of races known as the UTMB World Series, which includes various ultra-running events across different locations. These races are designed to challenge participants with diverse terrains and conditions, making them a highlight for endurance athletes globally.