Red marathon. Running a red horse is running a red marathon. 2023 Guang 'an Red Marathon is a marathon organized by and certified by China Athletics Association A 1. Sponsored by Guang 'an Municipal People's Government, Sichuan Branch of Xinhua News Agency and Xinhuanet, and undertaken by the Propaganda Department of Guang 'an Municipal Committee of the Communist Party of China, Guang 'an Education and Sports Bureau and Xinhuanet Sports.