Walshaw akakwikwidza mumakwikwi maviri (ose ari 100 uye 200 m) paMitambo yeOlympic yeZhizha ya2000 muSydney. Akanyora FINA B-mazinga e52.08 (100 m freestyle) uye 1:52.75 (200 m freestyle) kubva kuU.S. National Championships muFort Lauderdale, Florida. Mumakwikwi emamita mazana maviri akasununguka, Walshaw akaiswa pachinhanho chechina mumakwikwi okutanga mangwanani. Achishambira mumakwikwi mana, akapedzisa kusvika kunzvimbo yekupedzisira munhoroondo itsva yeZimbabwe ye1:54.70. Mazuva maviri gare gare, mumakwikwi emamita 100 akasununguka
Walshaw akatarisana nevamwe vanoshambira vanomwe mumakwikwi aya, kusanganisira Carl Probert wekuFiji, uyo akambohwina mumakwikwi eOlympic katatu. Akamhanyira kunzvimbo yechinomwe uye wechishanu wechipiri wose mu52.53, kupfuura hafu yechipiri kunze kwenguva yake yekupinda.