 Nyorera kupfuurira kweiyi ndima - Nguva pfupi pamberi pe2011 Pan American Games muGuadalajara, Mexico, akabatanidzwa naMary Killman kukwikwidza se duet. Mumitambo iyoyo, Killman naKoroleva vakakunda menduru yesirivha mumakwikwi evanhu vaviri, uye vaiva nhengo dzechikwata cheUnited States chakakundawo sirivha mumakwikwi echikwata. Vaviri vacho vakakwanisa kuita mutambo wevakadzi vari vaviripa 2012 Summer Olympics muLondon, uye nokuda kwekukundikana kweUnited States kuti ikwanise kupinda mumutambo weboka, ivo ndivo voga vakadzi veAmerica kuti vakwikwidzane mukushambira kwakabatanidzwa pamitambo iyoyo. 