The traditional distance of a standard marathon is 26.2 miles (42.195 kilometers). This distance has become the benchmark for marathons worldwide, originating from the ancient Greek legend of Pheidippides. The marathon is a test of endurance, requiring a combination of physical training, mental stamina, and strategic pacing. Many prestigious marathons, such as the Boston and New York City Marathons, attract athletes seeking to achieve personal bests or qualify for larger competitive events.