Former multiple champion trainer John Moore can maintain his push for another title by taking the third event on tonight's Happy Valley card with the improving young stayer, Liffey River. Moore is in tremendous form, his jockey Patrick Payne is riding with great skill and confidence, looking very well balanced and tactically most astute, and Liffey River, himself, appears to be in the pink. Liffey River, a son of the former top French miler Irish River, was an expensive American purchase by Moore. But from the moment he started working, Liffey River was never going to be a precocious type. He's been a slow and gradual learner and is only now starting to show his true potential and that has come since he was moved up in distance by Moore. Liffey River broke through for his maiden win when sent out over 2,400 metres on dirt and given a power ride by the useful English jockey Kevin Darley. Since then Liffey River has run once on the dirt when seventh to Ablaze over an inadequate 1,800 metres. But Liffey River was noted doing his best work at the finish, staying on strongly to the line under Stanley Chin and he should relish tonight's move to 2,200 metres. The tempo of the race should also suit Liffey River as he's a dour stayer and it is very much in his favour that this 2,200-metre event looks set to be run at a solid pace. Rambo and Great Intent are confirmed front runners and they look almost certain to take the field along at a good lick. They could bring themselves undone if they get into a battle for the lead, but they should help the likes of Liffey River who can sit behind the speed under Patrick Payne and take over when the front runners start to cry 'enough'. Highland Dancer has improved since trainer Patrick Biancone moved him up in distance, recording a win and a second placing. His recent work has been good and he merits quinella respect along with the David Hill-trained Seasons Wind who put in a fluent gallop on Tuesday morning and two starts ago landed a nice little earner for his connections. Peter Ng Bik-kuen's Gran Senorum has gradually come to peak condition and he looks best of the others. He is likely to be slowly away - he always is - but he is another who should benefit from what should be a truly run race. Sharp Shooter looks the natural leader in the Tung Wah Centenary Challenge Cup and should be backed accordingly. He's going to be hard to catch from barrier one, but later in the night look for horses that can dash home from off the speed as the track may start to cut up.