There Serie A Basketball League organizes the first Italian basketball championship under the aegis of the FIP. The first was played in 1920. The formula currently in use is a 16-team championship, with the top eight playing a second phase, the playoffs, for the title, while the last two are relegated to Serie A2. There will therefore be three rounds (quarter-finals, semi-finals and final). The first two are played as a best of five games, the final is a best of seven. Until 2022-23, 99 teams have participated in the 82 single-group championships played since 1937-1938.
1920: SEF Costanza Milan
1921: ASSI Milan
1922: ASSI Milan
1923: International
1924: ASSI Milan
1925: ASSI Milan
1926: ASSI Milan
1927: ASSI Milan
1928: Gymnastics Rome
1929: Championship not held
1930: Ginn. Triestina
1931: Gymnastics Rome
1932: Ginn. Triestina
1933: Gymnastics Rome
1934: Ginn. Triestina
1935: Gymnastics Rome
1935-1936: Olimpia Milan
1936-1937: Olimpia Milan
1937-1938: Olimpia Milan
1938-1939: Olimpia Milan
1939-1940: Ginn. Triestina
1940-1941: Ginn. Triestina
1941-1942: Reyer Venice
1942-1943: Reyer Venice
1943-1944: Championship not approved
1944-1945: Championship not played
[1945-1946:VirtusBologna
1946-1947: Virtus Bologna
1947-1948: Virtus Bologna
1948-1949: Virtus Bologna
1949-1950: Olimpia Milan
1950-1951: Olimpia Milan
1951-1952: Olimpia Milan
1952-1953: Olimpia Milan
1953-1954: Olimpia Milan
1954-1955: Virtus Bologna
1955-1956: Virtus Bologna
1956-1957: Olimpia Milan
1957-1958: Olimpia Milan
1958-1959: Olimpia Milan
1959-1960: Olimpia Milan
1960-1961: Pall. Varese
1961-1962: Olimpia Milan
1962-1963: Olimpia Milan
1963-1964: Pall. Varese
1964-1965: Olimpia Milan
1965-1966: Olimpia Milan
1966-1967: Olimpia Milan
1967-1968: Pall. Cantu
1968-1969: Pall. Varese
1969-1970: Pall. Varese
1970-1971: Pall. Varese
1971-1972: Olimpia Milan
1972-1973: Pall. Varese
1973-1974: Pall. Varese
1974-1975: Pall. Cantu
1975-1976: Virtus Bologna
1976-1977: Pall. Varese
1977-1978: Pall. Varese
1978-1979: Virtus Bologna
1979-1980: Virtus Bologna
1980-1981: Pall. Cantu
1981-1982: Olimpia Milan
1982-1983: Virtus Rome
1983-1984: Virtus Bologna
1984-1985: Olimpia Milan
1985-1986: Olimpia Milan
1986-1987: Olimpia Milan
1987-1988: VL Pesaro
1988-1989: Olimpia Milan
1989-1990: VL Pesaro
1990-1991: Juvecaserta
1991-1992: Pall. Treviso
1992-1993: Virtus Bologna
1993-1994: Virtus Bologna
1994-1995: Virtus Bologna
1995-1996: Olimpia Milan
1996-1997: Pall. Treviso
1997-1998: Virtus Bologna
1998-1999: Pall. Varese
1999-2000: Fortitudo Bologna
2000-2001: Virtus Bologna
2001-2002: Pall. Treviso
2002-2003: Pall. Treviso
2003-2004: Mens Sana Siena
2004-2005: Fortitudo Bologna
2005-2006: Pall. Treviso
2006-2007: Mens Sana Siena
2007-2008: Mens Sana Siena
2008-2009: Mens Sana Siena
2009-2010: Mens Sana Siena
2010-2011: Mens Sana Siena
2011-2012: Title revoked in Siena
2012-2013: Title revoked in Siena
2013-2014: Olimpia Milan
2014-2015: Dinamo Sassari
2015-2016: Olimpia Milan
2016-2017: Reyer Venice
2017-2018: Olimpia Milano (4-2 over Aquila Trento)
2018-2019: Reyer Venezia (4-3 over Dinamo Sassari)
2019-2020: Championship suspended and not awarded
2020-2021: Virtus Bologna (4-0 over Olimpia Milano)
2021-2022: Olimpia Milano (4-2 over Virtus Bologna)
2023-2024: Olimpia Milano (3-1 over Virtus Bologna)
