Mezue ahịrịokwu na-esonụ: Na 2008 Summer Olympics na Beijing, China, Peirsol meriri ọlaedo na 100 mita azụ na
4×100-metre medley relay. O ritekwara ọlaọcha n'ọsọ mita 200 n'azụ. N'asọmpi mbụ ya, 100 mita azụ, Peirsol bụ onye a na-achọsi ike maka ọlaedo, ya na ya bụ onye na-edekọ ụwa na onye na-agbachitere Olympic. N'ikpeazụ nke 100 mita azụ, Peirsol na-egwu mmiri na ahịrị nke abụọ, ebe ọ bụ onye nke ise n'ọkara ikpeazụ. Na mita 50 mbụ na 100 mita azụ, Peirsol nọ n'ọnọdụ nke abụọ n'azụ Liam Tancock, onye wepụrụ ya na 25.11. Peirsol nọ 0.54 s n'azụ Tancock na ntụgharị. Agbanyeghị, mgbe ntụgharị ahụ gasịrị, Peirsol gafere Tancock, onye mechara nọrọ n'ọnọdụ nke isii, wee merie ọla edo. Oge ikpeazụ Peirsol nke 52.54 bụ ihe ndekọ ụwa ọhụrụ, na-emezi akara ya gara aga nke 52.89 setịpụrụ n'ọnwa gara aga. Mgbe ọsọ ahụ gasịrị, Peirsol kwuru, sị, "Enwere m obi ụtọ, enwere m ahụ efe, enwere m nnọọ obi ụtọ". N'ihe omume nke abụọ ya, 200 mita azụ, Peirsol nọ na nke abụọ na Ryan Lochte 1: 54.33 ruo 1: 53.94. N'imeri ọlaedo, Lochte mebiri ihe ndekọ ụwa nke ya na Peirsol kesara na 200 mita azụ. N'ihe omume ikpeazụ ya, 4 × 100 mita medley relay, Peirsol jikọtara ya na Brendan Hansen, Michael Phelps, na Jason Lezak iji merie ọla edo na oge ndekọ ụwa nke 3: 29.34, na-ebelata akara ochie nke 3: 30.68 setịpụrụ afọ anọ gara aga na Atens.