Kammala jumla mai zuwa: Vandenberg ya girma a Moraga, California, kuma ya yi iyo don makarantar sakandaren Campolindo da Orinda Aquatics. Ta kasance memba na kungiyar Amurka da ta lashe lambar tagulla a gasar
'yan mata 4 × 200-mita relay a gasar Olympics ta 2008 a Beijing. Ta kuma lashe lambobin azurfa a Wasannin Jami'o'in Duniya na 2005, da kuma a Gasar Cin Kofin Duniya ta 2007 a tseren mita 200 na mata. Shekaru huɗu bayan haka, ta lashe lambar zinare a cikin wannan taron a Wasannin Pan American na 2011 a Guadalajara.