Ultra running is a long-distance running sport that involves races longer than the traditional marathon distance of 26.2 miles (42.2 kilometers). These races can range from 50 kilometers to over 100 miles, and they often take place on trails, roads, or a combination of both. Ultra runners typically train for months to build endurance and stamina, as these events can last from several hours to multiple days. Participants in ultra running events often face unique challenges, such as varying terrain, weather conditions, and the need for proper nutrition and hydration. Many ultra races also include time limits and require runners to navigate checkpoints along the course. The sport has gained popularity in recent years, attracting both seasoned athletes and newcomers looking for a test of physical and mental strength.