Mezue ahịrịokwu na-esonụ: Kahanamoku ruru eru n'ụzọ dị mfe iso n'òtù egwuregwu igwu mmiri nke United States n'egwuregwu Olympic na 1912. N'egwuregwu Olimpik nke afọ 1912 na Stockholm, o nwetara ihe nrite ọlaedo na
100 mita freestyle, na ọlaọcha ọla ọcha na ndị otu US nke abụọ na ndị nwoke 4 × 200 mita freestyle relay.