Cika wannan jumla: Gresdal ya kuma yi takara a gasar
tseren mita 50 na 'yan mata, a lokacin da take 'yar shekara 15, a wasannin Olympics na 2000 a Sydney. Ta sami daidaitattun FINA A na 25.93 daga Gwajin Wasannin Olympic na Kanada a Winnipeg, Manitoba. Ta kalubalanci wasu 'yan wasa bakwai a zagaye na goma, ciki har da tauraron Dutch mai suna Inge de Bruijn da kuma kare gasar Olympics Amy Van Dyken. Ta kammala filin zuwa na karshe a cikin 26.79, kawai 2.33 seconds daga rikodin Olympic, wanda De Bruijn ya kafa. Gresdal ta kasa ci gaba zuwa wasan kusa da na karshe, yayin da ta sanya na talatin da takwas a cikin duka masu iyo 74 a cikin prelims.