Torsak Pongsupa

After this, he quit boxing. He worked at Osotspa Company as a public relations officer for many years, and then he came back to boxing again with Orathai Kanchanachoosak as a manager. On 11 May 1996 he challenge the minor institution WBF Junior featherweight with Tony Wehbee, an Australian owner at Ratchawong Pier, Yaowarat, Bangkok, he was the winner by majority points decision.

On December 22, 1991, he challenge WBC Super flyweight World Champion against Moon Sung-kil, a Korean owner at Indoor Gymnasium, Incheon, South Korea. But it appears that he was TKO (referee stops contest) in the sixth round.

He participated in amateur boxing and was quite successful in the youth division. He later qualified for the national team in the 1988 Summer Olympics in Seoul, South Korea. He was defeated by Vichai Khadpo (Vichairachanon Khadpo) by RSC (because his eyebrows were broken and couldn't continue to fight). After this he switched to professional boxing. He won seven time, losing only once against fellow-countryman Thanomsak Sithbaobay, and winning WBC Super flyweight International Champion by wins over Dadoy Andujar, a Filipino boxer. He defended his title three times, the first to beat Michael Ebo Danquah, a Ghanaian boxer, at Thai Army Sports Stadium, Vibhavadi Rangsit Road, Din Daeng District, Bangkok.

Torsak (nickname: Singha; สิงห์) was born at Bangkok's Lat Phrao neighborhood, Tambon Bang Kapi, Phaya Thai District (currently Bang Kapi District). His father, Capt. Chanai Pongsupa, owns a boxing and Muay Thai gym "Sasiprapa" and was manager of Thailand's national amateur boxing team in the 1980s. He graduated high school from Bangkapi School and received a bachelor's degree from Bangkok University.

Torsak Pongsupa (Thai: ต่อศักดิ์ ผ่องสุภา ; born 23 November 1968), also known as Torsak Sasiprapa (ต่อศักดิ์ ศศิประภายิม ), is a retired Thai professional boxer who winner of the WBF Junior featherweight World Champion in 1990s.