The distance of a marathon is 26.2 miles. This long-distance race is renowned for its endurance challenge, attracting runners of various skill levels from around the world. Marathons often serve as significant milestones for both professional and amateur athletes, promoting physical fitness and personal achievement. The 26.2-mile distance originated from the 1908 London Marathon, where the course was extended for the convenience of the British royal family. Since then, it has become the standard marathon distance globally.