Last year's winner Rainbow High heads a maximum field of 18 for tomorrow's £100,000 Tote Chester Cup.
Michael Hills will ride the five-year-old for trainer father Barry as the horse bids to become the first to win the race carrying more than 9st 8lb since at least 1900.
The stable also runs Prairie Falcon, who will be partnered by up-and-coming apprentice Jamie Mackay.
Top Cees, who will be ridden by champion jockey Kieren Fallon, bids to win the race for the third time having scored in 1995 and 1997, as well as picking up career-threatening injuries in scrimmaging in the race in 1998.
Among the other contenders are James Fanshawe's pair Tensile and Eilean Shona, Malcolm Jefferson's high-class hurdler Dato Star and Irish challenger Ansar, trained by Dermot Weld.
The Hills team's hopes of repeating last year's big-race double on this day will rest on Fame At Last, one of a field of just five for the Shadwell Stud Cheshire Oaks.
The Quest For Fame filly's biggest threat may come from the Sir Michael Stoute-trained Abscond.
Mark Johnston is hoping for a good run from the evergreen Star Rage, who carries just a featherweight in the Chester Cup.
With stable apprentice Keith Dalgleish claiming 7lb, the 10-year-old will carry just 7st 6lb in the race.
The Middleham trainer said: "Theoretically this is a big jump in class for him but he has a lot in his favour, he's got no weight, he'll like the good gallop and the trip and the ground.
"Keith has come a long way as he had only had his first ride in January but he is obviously a very talented young rider.
"Star Rage didn't run very well at Salisbury on Sunday but that race could just have brought him on and he kept surprising us last year."
Johnston also had news of his other three runners at the Roodeye tomorrow.
"Golden Miracle is a frustrating horse who has obviously got lots of ability and he is working very well but the draw hasn't done us any favours," he said.
"I don't know what to expect from Emissary as of the two-year-olds we have run so far this season, only Bouncing Bowdler has shown any worthwhile form.
"At one point this winter, I though we were well ahead but we have had a few getting setfast and obviously that has held us up a little.
"Emissary's a sharp colt, but I don't know if he'll be sharp enough.
"Aston Mara is completely out of form and he is only slipping down the weights slowly - we're trying him in blinkers but he's got a tough task."
Malcolm Jefferson is praying for rain before Dato Star takes his chance in the
The nine-year-old has shown all his best form on a soft surface and firm ground prevented his running up to his best in the Smurfit Champion Hurdle.
The trainer said: "I'm just hoping that one of those thunderstorms in the area finds its way to Chester - every little will help.
"I rang up the course this morning and they said it was mostly good and that they had put a little water on last night.
"The problem is that he is in such great form at the moment it would be a real shame to rough him off.
"He could come back for the Cesarewitch at the end of the season but he's got to have a break so he won't be having a Flat campaign. It would be too fast for him anyway.
"If we get some rain, I'm sure he'll run a big race."
