Ramba uchinyora ndima iyi - Mangwanani ezuva rechinomwe, Shields akahwina mumakwikwi ehafu yefainari ye100 metres butterfly uye haana kusvika kumakwikwi ekupedzisira. Manheru, Shields akabatsira kufambisira mberi nhangemutange ye4x100-metre medley
kusvika kumagumo naHunter Armstrong, Andrew Wilson, naBlake Pieroni.