Ultra runners are athletes who participate in races longer than the traditional marathon distance of 26.2 miles. These races can range from 50 kilometers to over 100 miles, often taking place on trails or rugged terrain. Ultra running tests not only physical endurance but also mental resilience, as participants may run for hours or even days. Training for ultra running typically involves gradually increasing mileage and incorporating long runs, speed work, and recovery days. Many ultra runners also focus on nutrition and hydration strategies to maintain energy levels during their races. Events like the Western States Endurance Run and Badwater Ultramarathon are popular among ultra runners.