Fiona Doyle has missed out on a place in the 100 metres breaststroke semi-finals.
The Irish swimmer finished eighth in a time of 1:07:58 in Heat 5.
Russia's Yulia Efimova won the heat in a time of 1:05:79, 0.93 seconds ahead of Jamaica's Alia Atkinson.
Third place went to Jennie Johansson of Sweden.
1:07.58 for Fiona @Fionamdoyle in the 100m Breaststroke Heats in #Swimming Hard luck Fiona! #TeamIreland pic.twitter.com/bZWi2yPSD7
— Team Ireland (@olympiccouncil) August 7, 2016
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