The club suffered relegation from the 2. Bundesliga in 2009–10 and played for a season in the 3. Liga before withdrawing to the level below for financial reasons. After the 2011–12 season in the Regionalliga West "TuS" became part of the new Regionalliga Südwest for the following year but was relegated from the league in 2015, dropping to the tier five Oberliga Rheinland-Pfalz/Saar. Koblenz won the Oberliga in 2015–16 and made an immediate return to the Regionalliga, but were relegated again at the end of the 2017–18 season.