Cika wannan jumla:
Gasar Zakarun Turai ta 2006 a Budapest, Steffen ya yi 53.30 a cikin taron 'yan mata na mita 100, ya karya rikodin duniya kuma ya wuce rikodin da ya gabata na 53.42 wanda Libby Lenton na Ostiraliya ya kafa. Ko da yake Lenton ya yi iyo a lokacin 52.99 a ranar 4 ga Afrilu 2007 a lokacin da aka haɗu da mita 400 na freestyle, FINA ba ta yarda da wannan lokacin a matsayin tarihin duniya ba, saboda ba a daukar tseren a matsayin taron FINA.