Pedzisa mutsara unotevera: Oleksiak aizokwikwidza achimirira chikwata cheCanada chokushambira mumitambo yeOlympic yeRio 2016 mumakwikwi mashanu. Makwikwi ake akatanga pazuva rokutanga. Mukupisa kwe
100 m butterfly, akaputsa rekodhi yenyika uye rekodhi yenyika yejunior nenguva ye56.73 munzira yake kuenda kuma semi fainari. Oleksiak akabatawo chikamu chekupedzisira chevakadzi 4 × 100 m freestyle relay timu naTaylor Ruck, Chantal van Landeghem, Sandrine Mainville, naMichelle Williams neyekupedzisira chete kushambira mukupisa. Mumakwikwi okupedzisira emutambo wenhabvu, akabata nzvimbo yechitatu achipesana neUnited States neAustralia, achikunda menduru yekutanga yeCanada yeOlympic mumutambo wenhabvu yevakadzi mumakore makumi mana. Pashure pomutambo wacho, ane makore 16 okukura akati, "Hapana munhu akanga achitarisira chaizvoizvo kuti Canada yaizouya mumutambo wacho, asi zvino zvatiri pano, vanhu vachashamiswa nezvatinoita".