[4] Dadashev continued his amateur career into college; he studied at Baltic State Technical University and graduated with a degree in sports management.

Dadashev won the vacant WBC-NABF light-welterweight title in June 2018 with a tenth-round stoppage of Darleys Pérez, and defended it in October 2018 with a ten-round decision win over former WBC lightweight champion Antonio DeMarco.

[4][6] On July 19, 2019, Dadashev fought Subriel Matías as part of a Top Rank event aired by ESPN at the MGM National Harbor in Oxon Hill, Maryland.

[7] Dadashev lost via stoppage after his trainer, Buddy McGirt, asked the referee to stop the contest at the end of the eleventh round.

[5] He was rushed to the University of Maryland Prince George's Hospital Center, where he was diagnosed with a subdural hematoma and underwent emergency surgery to stop the bleeding.