A sore foot restricted Samantha Murray as she missed out on the final of the Modern Pentathlon World Cup 4 in Budapest last Thursday.
The London 2012 Olympic silver and World bronze medallist finished 23rd in her semi-final.
Murray was joint 19th after the fencing, winning 15 of her 33 contests, with a disappointing run of defeats in the middle of her fence.
But she produced the fastest swim of the day, with 2:08.55, to go into the run/shoot in eighth overall.
However, Murray used up the full 50 seconds on two of her four visits to the shooting range during the run/shoot, and ended her campaign in 23rd.
She said on her twitter page: “Sore body and head focused on exams not pentathlon! Bad day in the office. Only one way up I suppose.”
The British champion - a title she won for the first time last month - can, however, look forward to the European Championships in Drzonkow, Poland, in July, before the World Championships in Kaoshiung, Chinese Taipei in August.