Rubuta ci gaba don wannan sakin layi - A Wasannin Olympics na bazara na 2008 a Beijing, Ragnheiður ya cancanci a karo na biyu a cikin shirin yin iyo iri ɗaya kamar Wasannin da suka gabata. Ta share FINA B-cuts na 25.95 (50 m freestyle) daga Dutch Open Swim Cup a Eindhoven da 56.06 (100 m freestyle) daga Gasar Cin Kofin Duniya ta FINA a Melbourne. A cikin tseren mita 100, an sake sanya ta a cikin zafin jiki na uku a kan wasu masu iyo bakwai, gami da Hannah Wilson na Hong Kong da Arianna Vanderpool-Wallace na Bahamas. Ta taba Cypriot Anna Stylianou don ɗaukar matsayi na biyar da na talatin da biyar gaba ɗaya ta kashi uku cikin ɗari na biyu (0.03), a cikin lokaci na 56.35 seconds. A tseren mita 50 na 'yanci
, Ragnheiður ya gama na huɗu a zagaye na takwas da 0.13 na biyu a bayan Natasha Moodie na Jamaica, yana da sa'o'i 25.82. Ragnheiður ta kasa ci gaba zuwa wasan kusa da na karshe, yayin da ta sanya na talatin da shida daga cikin 'yan wasa 92 a cikin wasannin farko na maraice.