Kingsbarns Reigns in Trophy Kingsbarns provided Aidan O'Brien with a first juvenile winner of 2012 in Britain when winning the Racing Post Trophy at Doncaster. The Ballydoyle youngsters have had an unusually frustrating year on their travels but the son of Galileo went some way to setting that record straight with an impressive victory in the final Group One of the season. Having jumped well, Joseph O'Brien settled him in behind the front pair of Trading Leather and Steeler with all seven runners closely grouped. O'Brien eased him out to launch his challenge and it was apparent that he was travelling far more easily than his rivals but the son of Galileo looked green in front and didn't pull clear of the field in the manner that might have been expected. Van Der Neer took a while to respond to Richard Hughes' urgings but did eventually pick up the bit and closed the gap on the Navan maiden winner - who only made his debut 17 days ago - to a length and three quarters at the line with Steeler back in third. Kingsbarns was the trainer's seventh winner of the mile contest and followed hot on the heels of Camelot's victory in the race 12 months ago. That colt, of course, went on to win the Epsom Derby and Sky Bet were sufficiently impressed with the performance to halve the winner's price to 6/1 for the Investec-sponsored Classic. Joseph O'Brien said: "He relaxed and travelled very well. I might have got to the front too soon, but my momentum took me there. "He was very green, but I think he is going to be a very good horse. Soft ground or quick ground, he'll have no problem."