KARL Burke's star filly Quiet Reflection continued her excellent season by winning the Group 1 Sprint Cup at Haydock last Saturday under Dougie Costello.

With July Cup conqueror Limato ruled out hours before the race on account of the deteriorating ground conditions, Quiet Reflection was sent off as the 7-2 favourite and her backers would have had few anxious moments as she cruised into contention under Costello before quickening to a one-and-three-quarter-length success.

The Tin Man ran on well to grab second after missing the break, while July Cup runner-up Suedois ran creditably in third.

A delighted Costello said: "I just said to Danny (Tudhope, rider of Suedois) I've never ridden anything like it and I probably never will again. For a filly to be press-button go, it's impressive."

"She's the real deal. She makes everything look like it's going two gears slower than she's going. It's all down to Jordan (Vaughan, groom) and Karl (Burke, trainer). I just turn up on the day."

Following such an authoritative success, Quiet Reflection was cut by bookmakers for the Champions Sprint Stakes.

If Quiet Reflection does turn up at Ascot – Burke suggested it was the next target – then she is likely to renew rivalry with The Tin Man, who delighted trainer James Fanshawe with his performance on ground which blunted his turn of foot.

It's hard to believe that the St Leger, the final Classic of the season, will take place tomorrow at Doncaster.

Ryan Moore will not be in action though as he's on duty at Leopardstown, leaving Seamie Heffernan to ride Idaho, the odds-on favourite.

Not for the first time, the clash between Irish Champions Day at Leopardstown and the St Leger has presented problems for jockeys hoping to ride at both meetings and, speaking on Wednesday, trainer Aidan O'Brien said: "It has been decided that Ryan will concentrate on Leopardstown on Saturday and that Seamus will ride Idaho at Doncaster."

O'Brien also ruled Somehow, an impressive winner at the Curragh on her most recent start, out of the Group 1 Matron Stakes at Leopardstown. He said: "Somehow has tweaked a muscle and won't be running in the Matron. Ryan will ride Alice Springs in the race."

On his jockey plans for tomorrow, O'Brien added: "If Ryan was to ride Idaho in the St Leger, he wouldn't make it back to Leopardstown in time for the Matron Stakes. We discussed the situation and it was agreed to have Ryan at Leopardstown and that Seamus would ride Idaho.

"We'll decide in the morning how many we'll declare for the St Leger. Seamus, Colm (O'Donoghue) and Donnacha (O'Brien) will be involved at Doncaster and will make it back in time for the later races at Leopardstown, including the Champion Stakes."

With the surface drying out, Doncaster clerk of the course Roderick Duncan planned to walk the course yesterday morning, with the prospect of a further adjustment to the current good to soft, good in places going description.

Although it was forecast to be dry until today, Duncan has also reported the possibility of "a significant amount of rain" tomorrow morning before the St Leger gets underway at 3.45pm.

He said on Wednesday: "I think the ground has started to dry a little bit this afternoon, but we'll wait and see what it walks like tomorrow morning. I'm not anxious to change the description at the moment and I will head out to walk the course around 5.45 tomorrow morning.

"It is forecast to be dry right through now until late Friday afternoon, when there is a chance of showers.

"There is a bigger risk of rain on Saturday morning. At the moment, there is due to be rain at around 7am on Saturday and we could have a significant amount of rain. We'll keep an eye on that forecast and see how it develops."