Jim Bolger's Finsceal Beo became only the second filly to complete the Irish and English 1000 Guineas double when landing the Curragh classic.
Finsceal Beo saw off Dimenticata by a neck at the Curragh
The odds-on shot saw off the Kevin Prendergast-trained Dimenticata by a neck to emulate the double achieved by Attraction in 2004.
Pipped in the French Guineas, Finsceal Beo hit the front a furlong out.
In another Group One contest, Irish Derby winner Dylan Thomas was beaten by Notnowcato in the Tattersalls Gold Cup.
Manning and Bolger's 9-10 favourite were content to sit patiently in
mid-division during the early throes of the race as the front-running Peeping
Fawn and Truly Mine ensured a generous gallop.
This enabled Finsceal Beo to slowly crank up the gears.
A few reminders from Manning just before the one-furlong pole seemed to put the
race to bed as the daughter of Mr Greeley galloped into a commanding lead from
But thoughts of premature celebrations were put on ice as 66-1 shot
Dimenticata, ridden by Chris Hayes, came from another parish inside the final
Finsceal Beo just held on after a photo-finish, however, and had a neck in
reserve at the line.
Boylesports Irish 1000 Guineas
1. Finsceal Beo (K Manning) 9-10 Fav
2. Dimenticata (C Hayes) 66-1
3. Peeping Fawn (J Heffernan) 12-1