Preview cork 16th Oct There is some nice prize-money up for grabs at Cork on Saturday and the Listed corkracecourse.ie Navigation Stakes contains an intruiging mix of horses dropping in class and others having their sights raised.Across The Rhine fits into the former category following a career-best effort behind Steinbeck in Group Three company at the Curragh, while Libano has been struggling in Group races this term but scored at this level prior to his long layoff.Air Chief Marshal is another eased in grade but Aidan O'Brien's charge has something to prove over the trip.Hujaylea appears to be improving rapidly as a seven-year-old and now has his first try at Listed level, while Ask Jack has been performing consistently well this term and deserves another crack at a race of this nature.The Irish Stallion Farms EBF Handicap (Fillies) looks a hotly-contested affair but it's hard to avoid the claims of hat-trick seeking Headford Lady, who has struck up a fine partnership with Ben Curtis.She may have most to fear from Edward Lynam's Listowel runner-up Riobamba.The eight-race meeting commences at 2.20 with division one of the Derrinstown Stud Apprentice Handicap.Johnstown Lad is interesting down in class but the lightly-raced Nowewont is open to improvement and looks on a workable mark.The second division can go to First In Command, who has appeared rejuvenated in two recent outings accross the Irish Sea.Gossamer Seed seems a winner-in-waiting judged on her Tipperary debut second and the Irish Stallion Farms EBF Median Auction Race is an ideal opportunity for the daughter of Choisir.The www.racinghomeforeaster.com Handicap might not take much winning and it could see course and distance scorer Desert Ben go very close if bouncing back from a poor run at Navan.Eurhythmic is an obvious contender for Charles O'Brien in the Jimmy Crowley Live On 31st October Maiden, while John Oxx can maintain his good run of form through Cocozza in the concluding Coolmore Duke Of Marmalade Maiden.