"Bangkok Marathon" is the largest marathon in Thailand. Starts from 1988 until the present. By the Sunday of the third week of November. It is the annual event. It is called. "Bangkok Marathon" with the venue. (Start and end of the race) is located on Sanchai Road. Front of the Grand Palace and Wat Phra Kaew or the Ministry of Defense. Traffic in the area was closed on the day of the event. It is said to be the venue with the most elegant surroundings.