Stack said afterwards: "It was important she won as she is a half-sister to Frozen Fire who won the Irish Derby.
"We'll chat to the owners to see whether or not she'll run again and we'll see if there are any races over 1m 4f for her coming up.
"It's good she has won today and that is mission accomplished."
The winner was bought for E70,000 as a yearling.
K.J. Leonard, rider of Adamantly trained by Richard John O'Brien, reported to the Clerk of Scales that his mount burst a blood vessel during this race.
The Irish Horseracing Regulatory Board Veterinary Officer reported to the Stewards that Adamantly trained by Richard John O'Brien was noted to have blood on both nostrils as a result of exercise induced pulmonary haemorrhage.
The Stewards ordered the withdrawal of Coasting Along, trained by J.H. Scott, for failing to lodge the passport in accordance with the provisions of Rule 90 (i).