<prompt> Pedzisa mashoko anotevera: Mumitambo yeOlympic yakaitwa muna 2008 kuBeijing, kuChina, Steffen ndiye akahwina mumakwikwi emamita 100 ekumhanya akasununguka, achibata Libby Trickett wokuAustralia uyo aiva nekodhi yepasi pose. Steffen akabata mumasekondi 53.12, achivandudza rekodhi yake yeOlympic ye53.38 yakaiswa pachikamu chekutanga che4 × 100 m freestyle relay. Steffen akabva adzingirira Dara Torres kuti akunde  <response>: Ndarama yemamita 50 yomutambo wakasununguka ine nguva yemasekonzi 24,06, ichikunda nemasekonzi 0.01. 