John Oxx and Fran Berry completed a double for the Aga Khan when Zarebiya ran out a ready winner of the concluding maiden at Leopardstown.
The daughter of Galileo quickened well to lead inside the final furlong and run out a convincing length-and-a-quarter winner over Scottish Reel
"She's a nice filly. She did a nice professional job and Fran rode her with confidence," said Oxx.
"He educated her well and she came through the gap like a professional. We're hoping she'll improve for the run.
"We weren't expecting her to win particularly but delighted she did. She's a nice stamp of a filly and I made some speculative entries with her earlier in the year.
"We'll wait and see and pick a three-year-old only race next. We'll take our time a bit as she might be a nice filly for the second half of the year."
Oxx and Berry has teamed up earlier with Shareen in the Fillies Handicap.