<prompt> Kirchner akanga ari mumwe wevatambi vashanu kuti chiratidzo Olympic kutanga nokuda Marshall Islands panguva 2008 Summer yeOlympic muBeijing, kukwikwidzana mune vakadzi 50 m vakasununguka  <response>: . Akagadzira zvakanakisisa zvake zve30.42 kuti atore nzvimbo yechina uye makumi manomwe neshanu zvachose mumatatu matatu emangwanani ekutanga, achitadza kufambira mberi kusvika kumusoro 16 semifinals. 