Career
He is a single-time Olympian (2000), and a top 8 finalist in both 100 and 200 m butterfly at the 2002 Asian Games in Busan, South of Korea. Tseng competed only in two individual events at the 2000 Summer Olympics in Sydney. In his first event, 200 m butterfly, Tseng placed thirty-fifth on the morning prelims.
He established a Taiwanese record of 2:03.62 to lead against five other swimmers in heat one.
Three days later, in the 100 m butterfly, Tseng challenged seven other swimmers in heat three, including Kyrgyzstan"s Konstantin Ushkov, silver medalist for Russia in Atlanta four years earlier, and Uzbekistan"s top favorite Ravil Nachaev.
