[5] Pleascach made her racecourse debut in the Group Three Grangecon Stud Stakes over six furlongs at the Curragh on 29 June when she started at odds of 16/1 and finished fourth of the eleven runners behind the Aidan O'Brien-trained I Am Beautiful.

[6] After an absence of over nine months, Pleascach returned in the Listed Salsabil Stakes at Navan Racecourse on 18 April 2015 and finished second, beaten one and half lengths by Bocca Baciata with Diamondsandrubies in third.

On 13 May she was stepped up in class for the Grade Three Blue Wind Stakes at Naas Racecourse in which she was matched against older fillies and mares and started favourite against six opponents headed by the Dermot Weld-trained Zannda.

Manning sent her into the lead approaching the last quarter mile and went clear of the field to win by eight and a half lengths despite being eased down in the closing strides.

[7] Eleven days later Pleascach was one of eighteen fillies to contest the Irish 1000 Guineas at the Curragh and started the 11/2 second favourite behind the Prix Marcel Boussac winner Found.

The Pretty Polly Stakes at the Curragh ten days later saw the filly drop back to a mile and a quarter but never looked likely to win and finished fifth behind Diamondsandrubies, Found, Ribbons and Secret Gesture.

Pleacach appeared to be struggling in the last quarter mile as Covert Love maintained her advantage whilst Curvy stayed on and Sea Calisi and the outsider Miss Marjurie began to make rapid progress.

She started a 14/1 outsider in a very strong seven-runner field and finished fourth behind Golden Horn, Found, and Free Eagle, with the other beaten horses being Highland Reel, The Grey Gatsby and Cirrus des Aigles.

Racing for the first time in well over a year she took the lead soon after the start but was caught in the final strides and beaten a short head by the British-trained Speedy Boarding.