IMPRESSIVE debut winner Great Barrier Reef maintained his unbeaten record with a commanding performance in the Kilkea Castle Marble Hill Stakes, completing the second leg of a treble on the day for Ballydoyle, Coolmore and Westerberg.

Sent off 8/15 favourite for the Group 3 won by Albert Einstein last year, the chesnut dwelt slightly in the stalls before racing towards the back of the field by Ryan Moore, while Wayne Lordan blazed a trail out on front aboard stablemate Carry The Flag.