He is particularly known for his portrayal of the title role in Verdi's Falstaff but he also is great Nabucco-"Nabucco", Simon-"Simon Boccanegra", Amonasro-"Aida", Rigoletto-"Rigoletto", Don Carlos di Vargas-"La forza del destino".

[3] He has since returned several times to the National Opera in Sofia, including performances as Amonasro in Aida (2012) and the title role in Nabucco (2011).

Since 2010 he has been a regular soloist at the Hessisches Staatstheater Wiesbaden, appearing as Miller in Luisa Miller and in the title roles of Il barbiere di Siviglia, Simon Boccanegra,"Falstaff" and Don Pasquale amongst others.

He sang the role for his house debuts at the Hamburg Staatsoper (2010), the Hungarian State Opera (2013), and the Deutsche Oper Berlin (2014).

The Ravenna production with Manolov as Falstaff, subsequently toured to Ferrara and other Italian cities and was revived at Ravenna in July 2015, conducted by Riccardo Muti, who brought the production and singers to Spain for performances at Oviedo's Teatro Campoamor later that month.