To run a marathon means to complete a long-distance race that is 26.2 miles (42.195 kilometers) in length. This event tests a runner's endurance, stamina, and mental strength. Marathons are held in various locations around the world, attracting both professional and amateur runners. Training for a marathon typically involves a structured plan that includes long runs, speed work, and rest days. Many runners participate in local races or join running clubs to prepare. The Boston Marathon and New York City Marathon are two of the most famous marathons, drawing thousands of participants each year.