Career
She represented her nation Iceland at the 2008 Summer Olympics, and has claimed a total of twenty-four Icelandic championship titles and eleven national records in both the 50 and 100 m breaststroke. Haraldsdottir competed for Iceland in two swimming events at the 2008 Summer Olympics in Beijing. Leading up to the Games, she posted a time of 1:10.66 (100 m breaststroke) to eclipse the FINA B-cut at the Mare Nostrum Arena International Meet in Canet-en-Roussillon, France, and 2:18.74 (200 m individual medley) at the Icelandic Championships in Reykjavík.
In the 100 m breaststroke, Haraldsdottir touched with a 1:11.78 for the sixth spot and fortieth overall in heat three, just a shy of her entry time by 1.12 seconds.
The following day, Haraldsdottir raced her way to fourth place in heat one of the 200 m individual medley with a 2:20.53, but failed to advance to the semifinals, finishing thirty-fifth overall in the prelims. Haraldsdottir also became the first female swimmer to represent her university at the 2011 National Collegiate Athletic Association Swimming & Diving Championships, where she set her own personal record of 1:01.15 in the women"s breaststroke.