The Championnat Nationale 1, is the second tier professional basketball league in Tunisia, established in 1955. As the 2025–26 season, the league features 12 teams. The league is organised by the Tunisia Basketball Federation (FTBB). The highest-placed teams are promoted to the Championnat Pro A. Format The Championnat Nationale 1 is played in the following system:
Preliminary round: the eighteen teams are divided in two groups of nine and play each other home and away. Play-offs: the four highest placed teams from the preliminary round play each other home and away. Super Play-off: the four highest teams from the play-offs play in the semi-finals and finals which are best-of-three series. Play-out: the teams ranked 5th to 9th play each other home and away. Teams 2025–26 teams The following 12 teams are the teams for the 2025–26 season: ClubCityAS MarsaLa MarsaAvenir Mégrine SportMégrineBardo SportLe BardoCA BizerteBizerteCS National GuardArianaCS Hammam-LifHammam-LifCS Hammam SousseHammam SousseCB M'sakenM'sakenCS SfaxienSfaxEzzahra SportsEzzahraJA BougatfaTunisSS SfaxSfax Champions
By Year
1955–56: 1956–57: 1957–58: 1958–59: ES Tunis 1959–60: 1960–61: 1961–62: 1962–63: 1963–64: 1964–65: 1965–66: 1966–67: CA GAS 1967–68: 1968–69: 1969–70: 1970–71: 1971–72: 1972–73: CA GAS 1973–74: CS Hammam-Lif 1974–75: CA GAS 1975–76: CS Hammam-Lif 1976–77: 1977–78: 1978–79: 1979–80: 1980–81: 1981–82: 1982–83: 1983–84: 1984–85: 1985–86: 1986–87: 1987–88: 1988–89: 1989–90: 1990–91: 1991–92: 1992–93: 1993–94: 1994–95: 1995–96: 1996–97: 1997–98: 1998–99: 1999–00: 2000–01: 2001–02: 2002–03: 2003–04: 2004–05: 2005–06: 2006–07: 2007–08: 2008–09: CS Hammam-Lif 2009–10: 2010–11: 2011–12: CS Hammam-Lif 2012–13: Tunis Air Club 2013–14: Sfax RS 2014–15: DS Grombalia 2015–16: Stade Gabèsien 2016–17: ES Tunis 2017–18: CA Bizerte 2018–19: Stade Gabèsien 2019–20: Ezzahra Sports 2020–21: SS Sfaxien 2021–22: ES Sahel 2022–23: ES Goulettoise 2023–24: BC Mahdia 2024–25: Stade Nabeulien
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