Illness forced Aileen Morrison to pull out during the bike leg in Saturday's elite women's ITU World Triathlon Series Grand Final in New Zealand
Irish Olympian Morrison had been in second place after the swim.
However, the 30-year-old Londonderry triathlete later revealed she had not recovered from a cold and felt she was not fit to finish the event.
Germany's Anne Haug won the Auckland final, pulling away from Gwen Jorgensen and Barbara Riveros Diaz.
Olympic silver medallist Lisa Norden of Sweden finished fourth to claim the overall world title.