Enbihaar put up a tough and classy performance to win the DFS Park Hill Stakes.
Sent off the 6/5 favourite on the back of a taking success at Glorious Goodwood, John Gosden's four-year-old filly set sail for home a couple of furlongs from home but Jim Crowley had to get serious in the saddle as Ryan Moore challenged on her inside aboard Delphinia.
The Aidan O'Brien filly was receiving 13lb from the proven Group Two winner but couldn't get to the front and had to settle for second at 15/2, beaten just a short-head.
Vivid Diamond (12/1) finished third for Mark Johnston and Franny Norton.
Crowley said: "I was delighted about that. I just wanted to get her rolling into the straight and there was quite a strong headwind. When she got there she probably thought she'd done enough. Giving away that weight, it was great."
Richard Hills, assistant racing manager to Sheikh Hamdan, said: "She slipped badly on the turn. That's unlike her. Obviously it's windy and perhaps it's a bit greasy there, I don't know.
"She's a lovely filly and has done nothing but improve. She won at Haydock which is why she was here today.
"John has 100 lots out in a morning and you can pick her out having a canter. She's got the most beautiful action.
"Obviously, as for plans, you've got Ascot (Fillies And Mares on Champions Day) and then Longchamp (Prix Royallieu)."
Gosden's son and assistant, Thady, said: "She ran great in that strong headwind. Obviously it wasn't ideal, but she had a tough battle with the second. She did it well."
Ed Walker's Dame Malliot was the main rival to the winner in the betting beforehand, but could only finish sixth of the eight runners.
Her owner Anthony Openheimer blamed himself for her lacklustre display, saying: "I'm afraid it's my fault entirely.
"A couple of days ago she looked a bit thin and Frankie (Dettori) said she'd gone over the top. She had three hard races and this was one too many.
"She wasn't pushed out today because there was no point. She'll go back to the stud for a break and come out racing next year, which will be nice."