Ribblesdale challenge still very much Alive Recent hugely impressive Navan scorer Alive Alive Oh is among 15 confirmations for the Ribblesdale Stakes at Royal Ascot on Thursday. Tommy Stack's filly slammed the Aidan O'Brien-trained Magical Dream by six lengths when winning a Listed race six weeks ago and displayed a smart turn of foot in the process. The runner-up could reoppose, although there are two other entries from Ballydoyle in Just Pretending, who finished third in the Irish 1000 Guineas, and Say, who was unplaced in the Epsom Oaks. Stack's son and assistant Fozzy said of Alive Alive Oh: "She'll do a bit of work in the morning (Saturday) and will go for the Ribblesdale, all going according to plan. "She's been working well on the all-weather and the ground wasn't too bad when she won at Navan, so I'm not too worried about the going at Ascot. You never really know until they run on it, but she's a good mover and I don't think it will be too much of a factor. "They are also throwing plenty of water on the ground. She's a smart filly and will go there with every chance." Michael Bell's Investec Oaks third The Lark is also among the confirmations, having stuck on well to claim minor honours at Epsom, with the eighth-placed Gertrude Versed another possible runner. John Gosden is responsible for both Gertrude Versed and Winsili, who defeated Thursday's Listed Newbury scorer Cruck Realta on that track last month. Winisli is owned by Khalid Abdullah, who also has Newmarket maiden winner Riposte, trained by Lady Cecil. She had finished second on her debut behind the Sir Michael Stoute-trained Waila at Sandown. Stoute also has Goodwood Listed victor Elik in the mix. Withdrawals at the confirmation stage included Oaks heroine Talent, Cheshire Oaks winner Banoffee and Irish 1000 Guineas second Rehn's Nest, who is set to run in the Coronation Stakes on Friday.