GWCM meaning in Sports ?

The Great Wall Marathon is an annual marathon race, traditionally held on the third Saturday of May along and on the Huangyaguan or Huangya Pass (simplified Chinese: 黄崖关; traditional Chinese: 黃崖關; pinyin: Huángyáguān; lit. 'Yellow Cliff Pass'), Tianjin section of the Great Wall of China East of Beijing. Since it first started in 1999, the race has grown to several hundred participants. A locally organized event offering a full selection of runs including a full marathon (42.2k), half marathon (21.1k), 10k, and 5k distances. Aside from the main marathon, a half marathon, 10 km and 5 km runs were also held until 2012. 2013 marked the debut of an 8.5 km "fun run", replacing the 5 and 10 km distances. The course is much tougher than traditional marathons with participants challenged by 5,164 stone steps and many steep ascents and descents.

The first and longest running international marathon whose course is entirely on the Great Wall of China. The course traverses through the Simatai (simplified Chinese: 司马台; traditional Chinese: 司馬臺; pinyin: Sīmǎtái), a section of the Great Wall of China located in the north of Miyun County, 120 km northeast of Beijing, and Jinshanling (simplified Chinese: 金山岭; traditional Chinese: 金山嶺; pinyin: Jīnshānlǐng), a section of the Great Wall of China located in the mountainous area in Luanping County, 125 km northeast of Beijing.