[citation needed] At the 1992 Summer Olympics in Barcelona, she won the bronze medal in the women's doubles together with Shim Eun-jung.

Four years later, at the Atlanta Olympics, she won the gold medal in the mixed doubles together with Kim Dong-moon and the silver medal in the women's doubles together with Jang Hye-ock.

[2] In 2011, Gil became the first woman to be appointed head coach of a professional team in Korea.

She was made Head Coach of the Samsung Electromechanics Women's Badminton Team.

[4] Gil has two children who are active elite badminton players.