Tamarind opened her account in fine style when taking the concluding 1m4f maiden for Ballydoyle.
Johnny Murtagh always had the filly in front rank and she kicked on over a furlong out for a four-and-a-half length victory at prohibitive odds of 2/9.
"She had two lovely runs and came on after a nice break," said Aidan O'Brien
"We'll step her up to a stakes race now, possibly a Group 3 at York. She stays very well and handles the ground well."