Slaheddine Hmadi shine babban daraktan Chess na Tunusiya na Duniya na shekarar (1982). Daga ƙarshen 1970s zuwa ƙarshen 1990s, Slaheddine Hmadi na daya ɗaya daga cikin manyan Yan wasan chess na Tunisia. Slaheddine Hmadi ya halarci wasan sau biyu a Gasar Interzonal na Gasar Chess ta Duniya: A cikin 1985 a Tunis sun kasance na 17; A cikin 1990 a Manila sun raba wuri na 60 - 62. Slaheddine Hmadi ya wakilci ƙungiyar Tunisiya a cikin manyan gwanayen wasan chess: a cikin Chess Olympiad ya halarci sau 8 (1978-1980, 1984-1986, 1990-1996); a World Chess Championship ya halarci 1985; a Gasar Wasannin Chess na Afirka ya halarci sau 2 (1993, 1997) kuma ya sami lambar zinare ta kowa (1993). Slaheddine Hmadi an bashi lambar yabo ta Chess International Master (IM) a 1982.