Ku qor faahfaahin faahfaahsan faahfaahinta faahfaahinta - Ciyaaraha Olombikada Xagaaga 2008 ee Beijing, Ragnheiður wuxuu u qalmay markii labaad isla barnaamijkii dabaasha ee Ciyaarihii hore. Waxay ka saxiixday FINA B-cut of 25.95 (50 m freestyle) oo ka socota Dutch Open Swim Cup ee Eindhoven iyo 56.06 (100 m freestyle) oo ka socota FINA World Championships ee Melbourne. 100 m oo qaab xor ah, waxaa dib loogu magacaabay heerkulka seddexaad iyada oo ay ka soo horjeedaan toddobo dabaasha kale, oo ay ku jiraan Hong Kong Hannah Wilson iyo Bahamas Arianna Vanderpool-Wallace. Waxay taabatay Qubrus Anna Stylianou si ay u qaadato kaalinta shanaad iyo shan iyo soddonka guud ahaan saddex boqolkiiba labaad (0.03), waqti 56.35 ilbiriqsi. Tartanka orodka 50 m ee dabaqa xorta ah
, Ragnheiður wuxuu kaalinta afaraad ka galay qeybta sideedaad 0.13 ilbiriqsi oo ka dambeysa Jamaica Natasha Moodie, oo saacadkeedu ahaa 25.82. Ragnheiður waxay ku guuldareysatay inay u gudubto semi-finalka, maadaama ay gashay kaalinta lix iyo soddonkaad 92 dabaasha oo ka mid ah horudhaca fiidkii.