N'egwuregwu Olimpik nke afọ 2016 e mere na Rio de Janeiro, o meriri ọla nchara n'ọsọ ọsọ n'ebe a na-agba ọsọ n'elu urukurubụba n'ogologo mita 100
na oge nke 56.63. Vollmer sokwa asọmpi na 4 × 100 mita freestyle relay n'otu abalị ahụ, nke ọ na-egwu mmiri ụkwụ nke atọ na nkewa nke 53.18. Ndị otu United States nke ya, Simone Manuel, Abbey Weitzeil, na Katie Ledecky meriri ọlaọcha na oge ndekọ America nke 3:31.89. Ọ sụrụkwa mmiri na 4 x 100 mita medley relay, na-enyere ndị otu US aka inweta ihe nrite ọla edo. Ọlaedo ya na medley relay bụ ọlaedo nke 1,000 maka US n'egwuregwu Olimpik nke oge ọkọchị.