<prompt> Feleletša polelo ye e latelago: Kirchner e be e le yo mongwe wa boradiatletiki ba bahlano bao ba ilego ba swaya go tšwelela ga bona ka lekga la mathomo ka di-Olympic bakeng sa Dihlakahlaka tša Marshall ka Dipapading tša Di-Olympic tša Selemo tša 2008 kua Beijing, ba phadišana ka  <response>: ya basadi ya 50 m freestyle. O ile a hloma lebelo la gagwe la 30.42 go tšea lefelo la bone le la bošupa-masometshela-hlano ka kakaretšo ka go fiša ga boraro bja prelims ya mesong, a palelwa ke go fetela pele go top 16 semifinals. 