History:Founded: 1912
in 1999 the 1.Bundelsiga rights were sold to Frankfurt, so TV Tatami Rhondorf went down to D2in 2001 were promoted to 1 Bundesliga, but sold the licence to Cologne 99ers *2020-21 season was canceled due to covid-19 pandemic
League achievements:
German 2.Bundesliga Pro B Champion -2010, 24German 2.Bundesliga Pro B (Group South) Regular Season Champion -2013, 24
European cups:
1998-1999:  Korac Cup |
League positions:
| Season | Tier | Division | W-L | Position + PlayOff | Cup | European competitions |
|---|---|---|---|---|---|---|
| 1992-93 | 3 | Regionalliga |  | |||
| 1993-94 | 2 | 2.Bundesliga | 30-14 | 3rd (Group North) | ||
| 1994-95 | 2 | 2.Bundesliga | 34-10 | 1st (Group North) | ||
| 1995-96? | 1 | Bundesliga | 8-18 | 11th | ||
| 1996-97 | 1 | Bundesliga | 18-8 | 2nd, lost in Quarterfinals 2-4 to Telekom Bsk | ||
| 1997-98 | 1 | Bundesliga | 14-10 | 5th, lost in Quarterfinals 1-4 to Trier | Finalist | |
| 1998-99? | 1 | Bundesliga | 18-8 | 3rd, lost in Semis 1-3 to Telekom Bsk  | ||
| 1999-00 | 2 | 2.Bundesliga | 16-4 | 2nd (Group North) | ||
| 2000-01 | 2 | 2.Bundesliga | 26-4 | 1st (Group North) | ||
| 2001-02? | 2 | 2.Bundesliga | 18-10 | 5th (Group North) | ||
| 2002-03 | 2 | 2.Bundesliga | 14-16 | 9th (Group North) | ||
| 2003-04? | 2 | 2.Bundesliga | 24-6 | 4th (Group North) | ||
| 2004-05 | 2 | 2.Bundesliga | 23-7 | 3rd (Group North) | ||
| 2005-06 | 2 | 2.Bundesliga | 16-14 | 6th (Group North) | ||
| 2006-07 | 2 | 2.Bundesliga | 18-12 | 4th (Group North) | ||
| 2007-08 | 2 | ProA | 21-9 | 4th | ||
| 2008-09 | 2 | ProA | 4th | |||
| 2009-10 | 2 | ProA | 1st | |||
| 2010-11? | 3 | ProB | 7-21 | 14th | ||
| 2011-12 | 3 | ProB | 5th | |||
| 2012-13 | 3 | ProB | 1st | |||
| 2013-14 | 3 | ProB | 6th | |||
| 2014-15 | 3 | ProB | 3rd | |||
| 2015-16 | 2 | ProA | 2-28 | 16th | ||
| 2016-17 | 3 | ProB | 10th | |||
| 2017-18 | 3 | ProB | 3rd | |||
| 2018-19 | 3 | ProB | 12th | |||
| 2019-20 | 4 | Regionalliga | 3rd | |||
| 2020-21? | 4 | Regionalliga | | |||
| 2021-21 | 3 | ProB | 10-16 | 10th (North) | ||
| 2021-22 | 3 | ProB | 10th | |||
| 2022-23 | 3 | ProB | 14-10 | 4th (North), lost in 1/8 Finals 0-2 to Bball Loewen | ||
| 2023-24 | 3 | ProB | 19-7 | 1st (Group South)  beat Koeln 2-0 in the Final | ||
| 2024-25 | 3 | ProB | 12-14 | 9th (Group South), lost in 1/8 Finals 0-2 to Leverkusen | ||
| 2025-26 | 1 | ProB | 12-14 | 8th (North), lost in 1/8 Finals 0-2 to OrangeAcad. |
