So Chun Hong gained his first experience in international competitions in 2014 when he was eliminated from the Asian Games in Incheon, South Korea, in the 100-meter run with 10.89 seconds in the first round and with the Hong Kong 4-by-100-meter relay won the bronze medal behind the teams from China and Japan in 38.98 s. At the IAAF World Relays 2015 in the Bahamas he was eliminated in the preliminary round with 39.33 s, but then won the silver medal behind China in 39.25 s at the Asian Championships in Wuhan . Two years later he won the silver medal behind China and Thailand at the Asian Championships in Bhubaneswar in 39.53 s.
Personal best
100 meters: 10.44 s (+1.5 m / s), April 12, 2014 in Hong Kong
200 meters: 21.61 s (+0.8 m / s), May 4, 2014 in Hong Kong
Note: This article places the family name before the person's first name. This is the usual order in Chinese. So here is the family name, Chun Hong is the first name.