Pedzisa mutsara unotevera: Nemhaka yenguva yezviitiko zvake zveGrand Prix, Mroz akanga ane bye ku
2009 U.S. Championships. KuNational, Mroz akaiswa 4th muchirongwa chipfupi mushure mekunge apihwa mbiri yekumhara 3A sekusvetuka kwake kunodiwa uye 3Lz-3T sekusvetuka kwake kwakabatanidzwa. Akaiswa wechipiri muchikanda chemahara, umo akaverengerwa nekumhara 4T uye masere matatu, kusanganisira mubatanidzwa we3Lz-3T. Akakunda menduru yesirivha yose, achiisa 12.19 mapoinzi kumashure kwemukundi uye mudzidzi-mudzidzi Jeremy Abbott uye 0.60 mapoinzi pamberi paEvan Lysacek.