Sycerika McMahon has failed to progress from the 50m breaststroke semi-finals at the European Championships.
The Portaferry teenager was 11th fastest overall in 31.50, just hours after setting a personal best of 31.05 in the heats.
Irish team-mate Fiona Doyle was sixth overall and qualified for the final.
McMahon, who also set a personal best in the 200m butterfly heats earlier on Saturday, goes in the 400m freestyle heats on Sunday in Berlin.
The 19-year-old's time of 2:13.75 in the 200m butterfly knocked over a second off her previous best but it was not enough to take her through to the semi-finals.
McMahon was competing just 20 minutes after her 50m breastroke heat and was one tenth of a second from making the semis with Russia's Yana Martynova taking the final position in 2:13.66.
McMahon won 50m breaststroke silver at the European Championships in 2012 while her previous best of 31.12 came at last month's Commonwealth Games.
Irish record holder Doyle secured a place in Sunday's final by swimming 31.30 on Saturday afternoon.