Gresdal also competed in the women's 50-metre freestyle, as a 15-year-old, at the 2000 Summer Olympics in Sydney. She achieved a FINA A-standard of 25.93 from the Canadian Olympic Trials in Winnipeg, Manitoba. She challenged seven other swimmers in heat ten, including Dutch rising star Inge de Bruijn and defending Olympic champion Amy Van Dyken. She rounded out the field to last place in 26.79, just 2.33 seconds off an Olympic record, set by De Bruijn. Gresdal failed to advance into the semifinals, as she placed thirty-eighth overall out of 74 swimmers in the prelims.