Achievements Manafov has a career high Association of Tennis Professionals singles ranking of 417 achieved on 21 July 2014. He also has a career high Association of Tennis Professionals doubles ranking of 252 achieved on 22 April 2013. Manafov has an International Tennis Federation junior career high ranking of 16 achieved in February 2011 and reached the final of the 2011 United States Open boys" doubles event with Maxim Dubarenco, losing to Robin Kern and Julian Lenz in the final, 5–7, 4–6.