<prompt> Pedzisa mutsara unotevera: Thomas Allen Shields akaberekwa musi waJuly 11, 1991 muzvinabhizimisi wokuAmerica wokushambira. Akakunda muOlympic kaviri uye ndiye achiri kutakura rekodhi yeAmerica mumakwikwi e200-metre butterfly. Mumitambo yeOlympics ya2016, Shields akahwina menduru yegoridhe mumakwikwi e4x100-metre medley relay yekushambira gumbo re butterfly re relay mumakwikwi ekutanga. Gare gare gore iroro akava muAmerica wokutanga kushambira nokukurumidza kupfuura masekondi 44 munhangemutange yebhatafurayi yemamita 100, achiisa chinyorwa chitsva cheAmerica che 43,84. Nokuda kweMitambo yeOlympic yeZhizha ya2020, akakwanisa kushambira  <response>: Shiri yemamita 100. 