Pat Smullen hopes previous experience of York stands Pale Mimosa in good stead for her crack at Friday's Weatherbys Hamilton Insurance Lonsdale Cup.
Dermot Weld's mare won the Galtres Stakes at the 2012 Ebor Festival and returns in tip-top form following an impressive victory in the Challenge Stakes at Leopardstown last month.
Smullen said: "I think she goes there with every chance. She came out of Leopardstown well and she has course form, which always helps. It looks a very good race and she's going to have to step up on what she's done so far, but we think she can do that.
"She doesn't want the ground too firm. We took her out of the Gold Cup at Royal Ascot because the ground was too quick, so hopefully we get some of the showers that are forecast."
Pale Mimosa is joined on the trip across the Irish Sea by the Mick Halford-trained Certerach, who beat Cavalryman at the Dubai Carnival earlier in the year but was beaten into sixth by Pale Mimosa at Leopardstown last time.
Halford said: "He travelled over on Wednesday and had a good trip. He's in good form and hopefully they don't get too much rain as he loves fast ground.
"It's a tough race with horses like Estimate and Cavalryman in there and he'll need a career-best to win, but we're hoping he'll run well.