Mezue ahịrịokwu na-esonụ: Joseph Hunter Armstrong (amụrụ na Jenụwarị 24, 2001) bụ onye America na-egwu mmiri. N'egwuregwu Olimpik nke afọ 2020, o ritere ihe nrite ọla edo na
4x100 mita medley relay, na-egwu mmiri azụ na prelims, ma mechie nke itoolu na 100 mita azụ.