An ultramarathon is a long-distance running event that exceeds the standard marathon distance of 26.2 miles (42.195 kilometers). These races can vary in length, typically starting at 50 kilometers (31 miles) and going up to 100 miles (160 kilometers) or more. Ultramarathons can take place on roads, trails, or a combination of both, and they often involve challenging terrains and varying weather conditions. Participants in ultramarathons must prepare extensively, as these events require not only physical endurance but also mental resilience. Runners often train for months, focusing on building stamina and developing strategies for hydration and nutrition during the race. Many ultramarathons also include time limits, adding an extra layer of challenge for competitors.