Rhasidat Adeleke won the women's 100 metres at the National Senior Track and Field Championships in Santry.
In doing so, she smashed the Irish record in a time of 11.13 seconds.
Sarah Lavin finished second, who last summer had taken that Irish 100 metres record down to 11.27 seconds.
Adeleke has repeatedly claimed senior records at 60m, 200m, 300m, and 400m – indoors and outdoors.
She also improved her own Irish 400m record to 49.07 when winning silver at the European Championships in Rome just over three weeks ago.
Meanwhile, Israel Olatunde defended his 100-metre men's title by defeating Bori Akinola in a tight finish at Morton Stadium.
Mark English led from start to finish to take the men's 800-metre title while Sarah Healy added another 800 metre women's title to her collection with a powerful run this afternoon.
For several Irish athletes, it was the last time for fans in Ireland to see them before the Paris Olympics.
Thomas Barr making it number 12 in the 400m hurdles, and Sophie O’Sullivan winning her first senior 1,500m title.
Sophie Becker grabbed her third 400-metre crown after victory in Dublin.
