Mezue ahịrịokwu na-esonụ: N'ọnwa Juun 2021, o ruru eru ịnọchite anya Canada na 2020 Summer Olympics na Tokyo. Mac Neil buru ụzọ sọọ mpi dịka akụkụ nke ndị otu Canada maka 4 × 100 m freestyle relay, dochie Ruck maka njedebe nke ihe omume ahụ ma gwuo mmiri nke 53.47 nke abụọ iji nyere aka were ọla ọcha ọla ọcha, ọla mbụ nke Mac Neil. N'ụbọchị na-eso ya, Mac Neil gbara asọmpi ikpeazụ nke
N'asọmpi 100 m butterfly, o ji 0.05 sekọnd merie onye China bụ Zhang Yufei, setịpụrụ ihe ọhụrụ kachasị mma na ndekọ Amerịka nke 55.59. Ọ bụ onye mmeri ọla edo mbụ nke Canada na Egwuregwu Tokyo 2020. Mac Neil na-eyi iko ma ghara inwe kọntaktị ma ọ bụ ọgwụ ọgwụ, n'ihi ya, ọ pụghị ịhụ nsonaazụ ya ozugbo ma ọ were ya sekọnd ole na ole iji lekwasị anya na bọọdụ nsonaazụ iji ghọta na ọ meriri ọla edo. Igwefoto lekwasịrị anya na ya na-ele anya na bọọdụ nsonaazụ ahụ wee kwuo mgbe nke ahụ gasịrị "Ana m anwa ile anya ma hụ ebe m bịara. Anụrụ m ka a na-akpọ aha m, n'ihi ya, amaara m na aghaghị m imewo ihe dị mma". Ihe omume ikpeazụ nke Mac Neil bụ 4 × 100 m medley relay, ebe o tinyere oge 55.27 na ụkwụ ya nke relay na ndị otu Canada meriri ọla nchara, nke atọ nke Mac Neil na Olympics.