400 meters. According to the introduction of Lingcheng Sports Park, the runway of Lingcheng Sports Park is a 400-meter plastic circular runway. Lingcheng District, belonging to Dezhou City, Shandong Province, is located in the northwest plain of Shandong Province, between Beijing, Tianjin and Jinan, and is known as "the gateway to Beijing and Tianjin, the thoroughfare in nine days". As of 20 19, it governs 10 towns, 1 townships, 2 sub-district offices, 1 economic development zones, with a total area of 12 13 square kilometers and cultivated land1.