Kammala jumla mai zuwa: A gasar Olympics a London, Fraser-Pryce ta lashe tseren mita 100 da kuma tseren karshe a 11.00 s da 10.85 s. Ta ci gaba zuwa wasan karshe a matsayin ta biyu mafi sauri mai cancanta a bayan Carmelita Jeter, wanda ya gudu 10.83 s a kowane zagaye. A cikin
A tseren mita 100 na karshe, Fraser-Pryce ita ce mafi sauri daga ginshiƙai tare da Jeter a cikin bin sa, kuma a ƙarshe ta jingina a layin gamawa don samun nasara kaɗan don kare taken ta. Lokacin ta na 10.75s shine na biyu mafi sauri a tarihin wasannin Olympic a lokacin, yayin da tseren kansa ya kasance mafi sauri na wasannin Olympics na mita 100, yana sanya mata shida a ƙarƙashin dakika 11. Jeter ya sami azurfa a cikin mafi kyawun kakar wasa ta 10.78 s, mafi saurin gudu na biyu a tarihin wasannin Olympics, kuma Campbell-Brown ya sami tagulla a cikin 10.81 s. Tare da nasarar ta, Fraser-Pryce ta shiga Amurkawa Wyomia Tyus (1964, 1968) da Gail Devers (1992, 1996) a matsayin mata kawai da za su kare taken Olympic na mita 100. Kwanaki daga baya a wasan karshe na mita 200, Fraser-Pryce ta rage nata na sirri zuwa 22.09 s. Duk da haka, ba ta iya sake fasalin Allyson Felix na Amurka ba, wanda ya dauki zinari a 21.88 s. Daga baya Fraser-Pryce ta sami lambar azurfa ta biyu a tseren mita 4 × 100, tare da Campbell-Brown, Sherone Simpson da Kerron Stewart. Lokacinsu na gamawa na 41.41 s sabon rikodin Jamaica ne, amma ya yi nesa da rikodin duniya na Amurka na 40.82 s.