Kammala jumla mai zuwa: A Wasannin Olympics na 2012 a London, ta juya a cikin lokaci mafi kyau na 57.42 seconds a lokacin wasan kusa da na karshe na
Tazarar mita 100 da kuma ci gaba zuwa wasan karshe. A wasan karshe, ta yi tseren a cikin 57.48 a kan hanyar zuwa na bakwai. "Manufarta ita ce kawai in shiga wasan karshe, kuma da zarar na samu hakan sai kawai ya zama irin kek ɗin da ke iya yin gasa a wasan karshe", in ji ta. "Saboda haka ina farin ciki. Na yi farin ciki da yadda na yi". Daga baya a wasannin, ta yi iyo a kafa na malam buɗe ido na 4 × 100 mita medley relay ga tawagar Amurka a lokacin zafin jiki na farko. 'Yan wasanta sun lashe wasan karshe, inda suka bai wa Donahue lambar zinare.