 Williams akahwina menduru yendarira senhengo yeUnited States U18 chikwata paFIBA Americas U18 Championship muna 2002. Akasarudzwa senhengo yeUSA Olympic timu ye2008 Olimpiki muna Chikumi 23, 2008. Chikwata ichi hachina kukundwa munzira yekuwanazve menduru yegoridhe mushure mekukunda mukwikwidzi wenyika muna 2006Spain nokurarama maererano nezita ravo rokuti Redeem Team pashure pokupotsa kupinda muMitambo yeOlympic yeZhizha ya2004. Mumitambo misere mumitambo yeOlympic ya2008, Williams akaenzana 8.0 poindi pamutambo ne2.8 inobatsira. Williams akanga ari mumwe wevatatu vanochengetedza muchikwata chenyika, pamwe chete naChris Paul naJason Kidd. 