Porta Fortuna is on course for the Qipco 1000 Guineas having pleased trainer Donnacha O’Brien in a recent racecourse gallop.

The Caravaggio filly won the Albany Stakes at Royal Ascot in June but showed she was far from just a precocious type when winning the Cheveley Park at the end of September.

Stepped up to a mile for the first time at the Breeders’ Cup, she went down by just half a length to Chad Brown’s Hard To Justify in the Juvenile Fillies Turf.

“She’s done well over the winter and we had her at Leopardstown for a day away on the Guineas Trials day and she went very well,” said O’Brien.

“We’re very happy with her and aiming for Newmarket.

“She barely won a maiden on heavy but all her best form is on quick ground, so I’d say the better the ground the better for her.

“She ran well over a mile at the Breeders’ Cup, but a Newmarket mile is different than around Santa Anita.

“We are happy to give it a go and if it doesn’t work we can always come back (in trip).”