A half marathon is a long-distance running event that covers a distance of 13.1 miles, or approximately 21.1 kilometers. It is a popular race format for both amateur and experienced runners, offering a challenging yet achievable goal for those looking to improve their endurance. Many half marathons are held annually in various cities around the world, often featuring scenic routes and community support. Training for a half marathon typically involves a structured running plan that gradually increases mileage over several weeks or months. Runners often incorporate a mix of long runs, speed work, and rest days to prepare their bodies for the race. Completing a half marathon can be a rewarding experience, promoting physical fitness and a sense of accomplishment.