Pedzisa mashoko anotevera: Pamitambo yeOlympic yeZhizha ya2012 muLondon, Grevers akahwina menduru nhatu: mbiri dzendarama neimwe yesirivha. Grevers akawana menduru yake yokutanga, sirivha, nokushambira nokuda kweboka reU.S. rakava panzvimbo yechipiri mumatanho okutanga e4×100-metre freestyle relay. Mumutambo wokupedzisira, chikwata cheAmerica chakapedza chiri chechipiri pashure peFrance. Achibatsirana naJimmy Feigen, Ricky Berens, naJason Lezak mumakwikwi okutanga, Grevers akahwina muchikamu chechipiri ndokunyora nguva ye47.59. Mushure mokutungamirira kupisa (52.92) uye semi-finals (52.66) ye
Mumakwikwi emamita zana kumusana, Grevers akahwina goridhe mumakwikwi ekupedzisira emamita zana kumusana aine nguva ye52.16, achivandudza rekodhi raAaron Peirsol reOlympic re52.54 rakagadzwa muna 2008 uye 0.76 masekondi pamberi paNick Thoman. Nokuda kwaGrevers, yakanga iri menduru yake yokutanga yegoridhe yomunhu oga. Mumutambo wake wokupedzisira, 4×100-metre medley relay, Grevers akakunda ndarama naBrendan Hansen, Michael Phelps naNathan Adrian. Achishambira nhano yokushambira shure, Grevers akarekodha nguva yemasekonzi 52.58, uye chikwata cheU.S. chakaenderera mberi kukunda nenguva ya3:29.35.