Bye Bye Baby part of O'Brien's treble Bye Bye Baby gave the Coolmore team and trainer Aidan O'Brien a Newmarket treble when getting off the mark on her fourth start in the Blandford Bloodstock Maiden Fillies' Stakes in the hands of Ryan Moore. Very few got into the seven-furlong heat as the 11-10 favourite was taken straight to the front and was joined by her market rival Altyn Orda. They dominated proceedings, with Bye Bye Baby asserting in the closing stages to strike by two lengths from the 2-1 second best. Princess Harley was five lengths away in third. O'Brien, who also won the Cheveley Park and Middle Park with Clemmie and U S Navy Flag respectively, said: "I am delighted. She is progressing with every run. Ryan was delighted with her and she has come forward from her last run. "She will go up in trip as she will stay further and she will be very happy to go further. I'd say we might go again and we might look at a Listed race for her. She is now really galloping. She is going to be a nice middle-distance filly."