 Ramba uchiverenga ndima iyi - Williams akapinda Roosevelt High School muSeattle asati atamba basketball yekoreji yeUniversity of Arizona kubva muna 2005 kusvika muna 2007. Muna 2005-06, akatamba mumitambo yese makumi matatu nematatu yeArizona uye akatanga mitambo makumi maviri neshanu. Williams aiva wechipiri anotungamirira scorer, avhareji 13.0 pfungwa pamutambo apo vachitungamirira chikwata muna nhatu pfungwa munda chinangwa muzana. Akaitawo avhareji ye4.7 rebounds uye 1.8 inobatsira pamutambo. Kuita kwake kwakanga kwakanaka zvakakwana kuti awane nzvimbo muPac-10 all-freshman team. Pashure pokurangarira kupinda muna 2006 NBA draft, akadzoka mugore rake rechipiri uye akatumidzwa zita reAll-Pac-10 timu yekutanga. Musi waApril 5, 2007, akazvizivisa nokuda kweNBA draft, achisiya makore ake maviri ekupedzisira ekoreji. 