Aidan O'Brien took the opening race on Oak's day at The Curragh when Black Quartz came home in front in the Whitney Moore EBF (C&G) Maiden under Johnny Murtagh in the colours of Derrick Smith.

O'Brien said afterwards, "The ground is very soft out there and Johnny said he idled a bit in front. He should improve from every run and he's still a big baby."

Boylesports have introduced Black Quartz at 25/1 for the 2000 Guineas.