Mezue ahịrịokwu na-esonụ: Adrian nwetara ihe nrite ọlaedo nke abụọ dị ka onye so n'òtù egwuregwu United States nke meriri n'asọmpi ahụ
4×100-meter medley relay n'ụbọchị ikpeazụ nke asọmpi ahụ. Ọ na-egwu mmiri n'ụkwụ freestyle, ebe Matt Grevers na-egwu mmiri n'ụkwụ azụ, Brendan Hansen na-egwu mmiri n'ụkwụ nke abụọ, na Michael Phelps na-egwu mmiri n'ụkwụ nke atọ. Ndị America dere oge nke 3:29:35, ndị otu Japan were ọlaọcha na ndị Australia nwetara ọla nchara. N'ọsọ ahụ, Adrian ji 46.85, nke kachasị ọsọ n'ọhịa.