Oper Köln
Roth was Associate Guest Conductor of the BBC National Orchestra of Wales from 2008 to 2012. He was Music Director of the Orchestre Philharmonique de Liège (OPL) for the 2009-2010 season. In September 2011, Roth became Principal Conductor of the SWR Sinfonieorchester Baden-Baden und Freiburg. In February 2014, the orchestra announced the extension of Roth's SWR orchestra contract through the 2015-2016 season. In the same month, February 2014, the city of Cologne announced the appointment of Roth as its next "Generalmusikdirektor" (GMD), which includes duties as "Gürzenich-Kapellmeister" and chief conductor of the Cologne Opera, effective 1 September 2015, with an initial contract of 5 years. In October 2018, his contract with the Gürzenich Orchestra Cologne and the Cologne Opera was extended to 2022.