Mona McSharry has missed out on a place in the 50 metres breaststroke final.
The teenager was sixth in her semi-final in Glasgow.
Calum Bain and Robbie Powell have failed to progress in the 50 metres freestyle heats, while Brendan Hyland was seventh in his 100 metres Butterfly heat.
‘The final was just out of reach...I’m happy with the experience I got’ – Mona McSharry reflects on the 2018 European Championships #Glasgow2018 pic.twitter.com/Qoz1EqRzKT
— RTÉ Sport (@RTEsport) August 8, 2018
Earlier: 16-year-old Tanya Watson 7th in first senior European final
16-year-old Tanya Watson has finished seventh in the final of the 10m Platform diving at the European Championships.
She climbed as high as fifth in the final, having originally progressed as 11th of 12 qualifiers.
Her penultimate dive saw her fall back to seventh, where she finished her first ever major finals.
Update 12:44pm: Teenagers Tanya Watson (16) and Mona McSharry (17) progress at European Championships
Tanya Watson has qualified for the final of the 10m Platform at the European Diving Championships in Glasgow.
She qualified in 11th place with a score of 233.15 points, as she made the top-12 who qualified for the final.
It is the 16-year-old's debut in a senior championship event.
Original story (12:07pm): Mona McSharry qualifies for European semi-finals
Mona McSharry has secured her place in the semi-finals of the 50m Breaststroke at the European Championships in Glasgow.
The 17-year-old finished third in her heat in a time of 31.09 seconds.
That was good enough for 10th fastest overall.
She will be back in the water for the semi-finals this evening.
Calum Bain and Robbie Powell have failed to progress in the 50m Freestyle heats, while Brendan Hyland was seventh in his 100m Butterfly heat.
Earlier, Eileen Burns had a disappointing end to her European Cycling Championships time-trial in Glasgow.
Having held second place early on, she suffered a puncture in the final 300m.
Burns eventually finished in 21st place, three seconds behind Kelly Murphy who was 19th.