Tyrone trainer Andy Oliver will attempt a top level success with First Cornerstone at Doncaster on Saturday in the final English Group One of the season.
First Cornerstone is available at up to 12/1 to supply Caledon-based Oliver and jockey Chris Hayes with victory in the £200,000 Racing Post Trophy.
Aidan O'Brien is likely to be three-handed in his bid to claim the prize, with his once-raced Kingsbarns backed from as big as 6/1 on Monday into outright 2/1 favouritism to come out on top.
Supplemented for the one-mile juvenile contest at a cost of £17,500, the Galileo colt, 14/1 co-second favourite for next year's Epsom Derby, was a seven-length winner at Navan two weeks ago.
Of O'Brien's five other entries, Battle Of Marengo and Magician are expected to be his other starters.
Jim Bolger's Newmarket scorer Trading Leather is as low as 5/2 to deliver his Coolcullen handler further two-year-old glory on Saturday, with Battle Of Marengo next best at 4/1.
Meanwhile, Levy Board members have unanimously agreed the 52nd Levy Scheme which will yield £72.9million.
The agreement comes a full week before the deadline for the 2013-14 scheme and compares favourably with the £72.4million agreed on 12 months ago.
William Hill, Ladbrokes and Coral have agreed to guarantee that their contribution will be no less than £45million.
Levy Board Chairman Paul Lee said: “This will make possible significant additional expenditure on prize money in 2013.”
Prize money allocations by the Board will exceed £50m, a rise of 30 per cent on 2012.