<prompt> Ngwala tšwetšopele ya serapa se - Willis o feditše ka 4th ka 2013 World Championships le ka 2013 European Championships SC ka bobedi ka 200-meters breaststroke. O feditše 4th ka 2014 European Championships gomme a tšwela pele go thopa sefoka sa bronze ka 2014 Commonwealth Games ka 200-meters breaststroke final ka Glasgow. O feditše 4th ka 2015 World Championships gomme a thopa sefoka sa bronze ka 2015 European Championships SC ka 200-meters breaststroke. O ile a tšea karolo go Ditšhišinyego tša Yuropa tša 2016  <response>: , gomme a fetša 4th ka makgaolakgannyeng a 200-meters breaststroke ka 2016 Summer Olympics ka Rio. O tšwetše pele go thopa sefoka sa silibera ka 2016 World Championships SC. Willis o ile a fihlelela makgaolakgannyeng a bobedi bja dimetara tše 100 le dimetara tše 200 tša go phonkgiša letswele Dipapading tša Commonwealth tša 2018, moo a feditšego ka 8th le 4th ka go latelana. Ka Julae 2018, Willis o ile a tlogela go rutha. 