History:Founded: 1959
Do not confuse the team with SD Kas Vitoria which played 1966-1974 in Premiera Liga. Both teams played together in Premiera Liga in 1972-74
League positions:
 Euroleague: 2017-7, 18-7, 19-7, 20-13, 21-10, 22-9, 23-9, 24-8
League achievements:
Spanish League Champion -2002, 08, 10, 20Spanish League Finalist -2005, 06, 09, 18 Spanish League Semifinals -2004, 07, 11, 12, 16, 17, 22 Spanish League Regular Season Champion -2004, 05, 07, 09 Spanish League Regular Season Runner-Up -2006, 10, 13, 17, 18 Spanish Cup Winner -1999, 02, 04, 06, 09, 26 Spanish Cup Finalist -2008 Spanish Cup Semifinals -2007, 11, 12, 16, 17, 21 Spanish Supercup Winner -2005, 06, 07 Spanish Supercup Semifinals -2011, 17, 21, 27 Spanish Supercup Finalist -2012, 14, 19
European cups:
1991-1992: Korac Cup1992-1993: Euro Cup of Champions 1994-1995: European Cup 1997-1998: Korac Cup 1998-1999: Euroleague 1999-2000: Saporta Cup 2000-2001: ULEB Euroleague: (took 3rd place (6-4) in Group B), lost to Kinder Bologna 2-3 in the final 2001-2002:  Euroleague: Stage 1: took 1st place (9-5) in Group D; Stage 2: took 2nd place (4-2) in Group H2002-2003: ULEB Euroleague: took 3rd place (2-4) in Group F of 2nd Stage 2003-2004: ULEB Euroleague: took 4th place (9-5) in Group C, then took 2nd place (4-2) in Group D of Top16 2004-2005: Euroleague: took 5th place (6-8) in Group C, then took 2nd place (4-2) in Group F, lost to Maccabi in the Final 78-90: Euroleague Finalist !!!2005-2006:  Euroleague: took 1st place (11-3) in Group A, then took 2nd place (4-2) in Group F, lost to Maccabi T-A 70-85 in the semifinals (!!!)2006-2007: Euroleague: took 1st place (12-2) in Group A, then took 1st place (6-0) in Group D of Top 16, lost to Panathinaikos 53-67 in the semifinals (!!!)2007-2008: Euroleague: took 3rd place (9-5) in Group A, then took 1st place (5-1) in Group E of Top 16, lost to CSKA Moscow 79-83 in the Semifinals, lost to Montepaschi 93-97,OT in the 3rd place game (!!!)2008-2009: Euroleague: took 1st place (8-2) in Group C, then took 2nd place (4-2) in Group E of Top 16, lost 2-3 to Regal Barca in the Quarterfinals !!!2009-2010: Euroleague: took 2nd place (7-3) in Group C of Regular Season, took 2nd place (3-3) in Group H of Top16, lost 1-3 to CSKA  in the Quarterfinals !!!2010-2011: Euroleague: took 2nd place (5-5) in Group A of Regular Season, took 1st place (4-2) in Group E of Top16, lost to Maccabi T-A 1-3 in the Quarterfinals !!!2011-2012: Euroleague: took 5th place (5-5) in Group A of Regular Season2012-2013: Euroleague: took 4th place (4-6) in Group C of the Regular Season, took 4th place (8-6) in Group F of the Top16, lost to CSKA 3-1 in the Quarterfinals !!!2013-2014: Euroleague: took 2nd place (6-4) in Group D of the Regular Season, took 7th place (5-9) in Group E of the Top162014-2015: Euroleague: took 3rd place (5-5) in Group D of the Regular Season, took 5th place (6-8) in Group F of the Top162015-2016: Euroleague: took 3rd place (6-4) in Group B of the Regular Season, took 2nd place (9-5) in Group F of the Top16, lost to Fenerbahce Ulker 77-88 in the Semifinals, lost to Lokomotiv 75-85 in the 3rd place game (!!!)2016-2017: Euroleague: took 7th place (17-2013), lost to CSKA 0-3 in the Quarterfinals !!!2017-2018: Euroleague: took 7th place (16-2014), lost to Fenerbahce 1-3 in the Quarterfinals !!!2018-2019: Euroleague: took 7th place (15-15) in Regular Season, lost to CSKA 1-3 in the Quarterfinals !!!2019-2020: Euroleague: took 13th place (12-16) in Regular Season, the season ended without play-offs due to covid-19 outbreak2020-2021: Euroleague: took 10th place (18-16) in Regular Season2021-2022: Euroleague: took 9th place (12-16) in Regular Season2022-2023: Euroleague: took 9th place (18-16) in Regular Season2023-2024: Euroleague: took 8th place (18-16) in Regular Season, lost to Real Madroid 0-3 in the Quarterfinals (!!!)
European cups achievements:
Euroleague Finalist -2001, 05Euroleague Final Four -2006, 07, 08, 16 Euroleague Quarterfinals -2009, 10, 11, 13, 17, 18, 19, 24 European Cup Winner -1996 |
| Since 2016 |
 2013-2016 |
 2009-2013 |
 1997-2009 |
 Until 1997 |
League positions:
| Season | Tier | Division | W-L | Position + PlayOff | Cup | Supercup | European competitions |
|---|---|---|---|---|---|---|---|
| 1959-60 | 3 | Provincional | 2nd | ||||
| 1960-61 | 3 | Provincional | 2nd | ||||
| 1961-62 | 3 | Provincional | 1st | ||||
| 1962-63 | 3 | Provincional | 2nd | ||||
| 1963-64 | 3 | Provincional | 1st | ||||
| 1964-65 | 3 | Provincional | 2nd | ||||
| 1965-66 | 3 | Provincional | 1st | ||||
| 1966-67 | 3 | Provincional | 2nd | Finalist | |||
| 1967-68 | 3 | Provincional | 1st | ||||
| 1968-69 | 3 | Provincional | 1st | Semifinals | |||
| 1969-70 | 3 | 3ª Division | 1st  | Semifinals | |||
| 1970-71 | 2 | 2ª Division | 2nd | ||||
| 1971-72 | 2 | 2ª Division | 1st | ||||
| 1972-73 | 1 | Primera Liga | 12-18 | 10th | Semifinals | ||
| 1973-74 | 1 | Primera Liga | 12-16 | 8th | |||
| 1974-75 | 1 | Primera Liga | 8-14 | 8th | |||
| 1975-76? | 1 | Primera Liga | 14-18 | 8th | |||
| 1976-77 | 1 | Primera Liga | 8-14 | 10th | |||
| 1977-78 | 1 | Primera Liga | 7-14 | 10th | |||
| 1978-79 | 1 | Primera Liga | 9-13 | 8th | Semifinals | ||
| 1979-80 | 1 | Primera Liga | 5-15 | 11th | |||
| 1980-81 | 1 | Primera Liga | 6-20 | 14th | |||
| 1981-82 | 1 | Primera Liga | 2nd | ||||
| 1982-83? | 1 | Primera Liga | 3-20 | 13th | |||
| 1983-84 | 1 | Liga ACB | 9th, lost in 1/8 Finals 1-2 to Licor 43 SCol. | ||||
| 1984-85 | 1 | Liga ACB | 10th, lost in 1/8 Finals 0-2 to Estudiantes | ||||
| 1985-86 | 1 | Liga ACB | 9th, lost in 1/8 Finals 0-2 to CB Granollers | ||||
| 1986-87? | 1 | Liga ACB | 8th, lost in Quarterfinals 0-2 to CAI Zaragoza | ||||
| 1987-88 | 1 | Liga ACB | 8th, lost in Quarterfinals 1-2 to Real Madrid | ||||
| 1988-89 | 1 | Liga ACB | 7th, lost in Quarterfinals 0-2 to Real Madrid | ||||
| 1989-90 | 1 | Liga ACB | 7th, lost in Quarterfinals 0-2 to Real Madrid | ||||
| 1990-91 | 1 | Liga ACB | 21-13 | 3rd (Group Odd), lost in Semis 1-3 to Mont.Joventut | |||
| 1991-92 | 1 | Liga ACB | 24-10 | 7th, lost in Semis 2-3 to Real Madrid | Korac Cup | ||
| 1992-93 | 1 | Liga ACB | 17-14 | 11th, lost in 1/8 Finals 0-2 to Elosua Leon | Semifinals | Euro Cup of Champions | |
| 1993-94 | 1 | Liga ACB | 16-12 | 11th, lost in 1/8 Finals 1-2 to CSF Sevilla | Finalist | ||
| 1994-95 | 1 | Liga ACB | 23-15 | 5th, lost in Quarterfinals 1-2 to Manresa | Winner | European Cup | |
| 1995-96 | 1 | Liga ACB | 21-17 | 8th, lost in Quarterfinals 1-2 to FC Barcelona | |||
| 1996-97? | 1 | Liga ACB | 20-14 | 5th, lost in Quarterfinals 1-3 to Fest.Joventut | |||
| 1997-98 | 1 | Liga ACB | 27-7 | 2nd  lost in Finals 1-3 to Manresa | Korac Cup | ||
| 1998-99 | 1 | Liga ACB | 24-10 | 5th, lost in Quarterfinals 1-3 to Estudiantes | Winner |  Euroleague: 4th (Group A) (5-5) | |
| 1999-00 | 1 | Liga ACB | 21-13 | 4th, lost in Semis 1-3 to FC Barcelona | Saporta Cup | ||
| 2000-01 | 1 | Liga ACB | 27-7 | 3rd, lost in Semis 2-3 to Real Madrid |  Euroleague: 3rd (Group B) (6-4) lost in Final 2-3 to Bologna V.1934 | ||
| 2001-02 | 1 | Liga ACB | 24-10 | 1st  beat Unicaja MAL 3-0 in the Finals | Winner | Euroleague: 1st (Group D) (9-5) | |
| 2002-03 | 1 | Liga ACB | 18-16 | 6th, lost in Quarterfinals 2-3 to Unicaja MAL | Finalist | Euroleague: 2nd (Group B) (9-5) | |
| 2003-04 | 1 | Liga ACB | 28-6 | 3rd, lost in Semis 2-3 to Estudiantes | Winner | Euroleague: 4th (Group C) (9-5)  | |
| 2004-05 | 1 | Liga ACB | 28-6 | 2nd lost in Finals 2-3 to Real Madrid | Semifinals | Semifinals | Euroleague: 5th (Group C) (6-8) lost in Final 78-90 to Macc. Tel-Aviv |
| 2005-06 | 1 | Liga ACB | 25-9 | 2nd lost in Finals 0-3 to Unicaja MAL | Winner | Winner |  Euroleague: 1st (Group A) (11-3), lost in Semis 70-85 to Macc. Tel-Aviv |
| 2006-07 | 1 | Liga ACB | 26-8 | 1st | Semifinals | Winner | Euroleague: 1st (Group A) (12-2) lost in Semis 53-67 to Panathinaikos |
| 2007-08 | 1 | Liga ACB | 22-12 | 4th beat FC Barcelona 3-0 in the Finals | Finalist | Winner | Euroleague: 3rd (Group A) (9-5), lost in Semis 79-83 to CSKA |
| 2008-09? | 1 | Liga ACB | 28-4 | 1st lost in Finals 1-3 to FC Barcelona | Winner | Winner | Euroleague: 1st (Group C) (8-2), lost in Quarterfinals 2-3 to FC Barcelona |
| 2009-10 | 1 | Liga ACB | 27-7 | 2nd beat FC Barcelona 3-0 in the Finals | Semifinals | Semifinals | Euroleague: 2nd (Group C) (7-3), lost in Quarterfinals 1-3 to CSKA |
| 2010-11 | 1 | Liga ACB | 23-11 | 4th, lost in Semis 0-3 to FC Barcelona | Semifinals | Semifinals |  Euroleague: 4th (Group A) (4-6) |
| 2011-12 | 1 | Liga Endesa | 23-11 | 3rd, lost in Semis 2-3 to Real Madrid | Semifinals | Finalist | Euroleague: 5th (Group A) (5-5) |
| 2012-13? | 1 | Liga Endesa | 25-9 | 2nd, lost in Q-Finals 1-2 to Gran Canaria | Semifinals | Euroleague: 4th (Group C) (4-6), lost in Quarterfinals 1-3 to CSKA | |
| 2013-14 | 1 | Liga Endesa | 19-15 | 6th, lost in Q-Finals 0-2 to FC Barcelona | Semifinals | Euroleague: 2nd (Group D) (6-4) | |
| 2014-15 | 1 | Liga Endesa | 19-15 | 6th, lost in Q-Finals 1-2 to Unicaja MAL | Semifinals | Euroleague: 3rd (Group D) (5-5) | |
| 2015-16? | 1 | Liga Endesa | 24-10 | 4th, lost in Semis 1-3 to FC Barcelona | Semifinals | Euroleague: 3rd (Group B) (6-4), lost in Semis 77-88 to Fenerbahce | |
| 2016-17 | 1 | Liga Endesa | 23-9 | 2nd, lost in Semis 1-3 to Valencia Basket | Semifinals | Semifinals |  Euroleague: 7th (17-13), lost in Quarterfinals 0-3 to PBC CSKA |
| 2017-18? | 1 | Liga Endesa | 25-9 | 2nd lost in Finals 1-3 to Real Madrid | Euroleague: 7th (16-14), lost in Quarterfinals 1-3 to Fenerbahce | ||
| 2018-19 | 1 | Liga Endesa | 26-8 | 3rd, lost in Q-Finals 0-2 to Zaragoza | Finalist | Euroleague: 7th (15-15), lost in Quarterfinals 1-3 to PBC CSKA | |
| 2019-20? | 1 | Liga Endesa | 12-11 | 8th beat FC Barcelona 69-67 in the Finals | Euroleague: 13th (12-16) | ||
| 2020-21? | 1 | Liga Endesa | 23-13 | 5th, lost in Q-Finals 1-2 to Valencia Basket | Semifinals | Semifinals | Euroleague: 10th (18-16) |
| 2021-22 | 1 | Liga Endesa | 20-14 | 6th, lost in Semis 0-3 to Real Madrid | Euroleague: 9th (12-16) | ||
| 2022-23? | 1 | Liga Endesa | 28-6 | 2nd, lost in Quarterfinals 0-2 to Joventut BDL | Euroleague: 9th (18-16) | ||
| 2023-24 | 1 | Liga Endesa | 18-16 | 9th | Euroleague: 8th (18-16), lost in Quarterfinals 0-3 to Real Madrid | ||
| 2024-25 | 1 | Liga Endesa | 19-15 | 7th, lost in Quarterfinals 0-2 to Real Madrid | Euroleague: 14th (14-20) | ||
| 2025-26 | 1 | Liga Endesa | 25-9 | 3rd, lost in Quarterfinals 1-2 to Joventut BDL | Winner |  Euroleague: 18th (13-25) |
