The Tokyo Marathon is an annual marathon race held in Tokyo, Japan. It typically takes place in early March and attracts thousands of runners from around the world. The event features a 42.195-kilometer course that showcases the city's landmarks, including the Tokyo Tower and Imperial Palace. Established in 2007, the Tokyo Marathon is part of the World Marathon Majors, which includes other prestigious races like the Boston Marathon and New York City Marathon. The event promotes fitness and encourages participation from both elite athletes and amateur runners, making it a popular event in the global running community.