18 for Chester Cup A total of 18 horses have been declared for tomorrow`s feature race the Tote Chester Cup.The weights are headed by Mark Johnston`s 2001 Ascot Gold Cup winner Royal Rebel who will bid to defy a welter burden of 10st 1lb under Darryll Holland.Last year`s winner of the race Rainbow High will run again as will High And Mighty who was a three-quarter length runner up in that renewal.Rainbow High`s trainer Barry Hills also has Prairie Falcon in the Stg£100,000 event.Brother Joe, who was third in the 2001 Tote Ebor, will contest the two mile, two and a half furlong contest and he is sure to be ready for the task after a winter campaign over hurdles.Champion jumps trainer Martin Pipe is also set to be double-handed with Riyadh, who has also been jumping over the winter, and Guard Duty in the field.