St Leger 2012: Runner-by-runner guide CAMELOT (Odds: 2/5) Trainer A P O'Brien Jockey J P O'Brien Unbeaten 2,000 Guineas, Derby and Irish Derby winner looking to bring home first Triple Crown for 42 years. Head and shoulders above rest of Classic generation so far this season, he is the one to beat. MICHELANGELO (12/1) Trainer J Gosden Jockey L Dettori 'Super-sub" Frankie Dettori on board but must be regarded stable's No2. Least experienced runner in field with just four runs behind him. Slightly disappointing in trial at Goodwood where he may not have handled track. THOMAS CHIPPENDALE (20/1) Trainer Sir H Cecil Jockey T Queally Royal Ascot winner who has beaten Thought Worthy before but was down the field in his trial after failing to settle. Stronger pace here will help. At 25-1 he could be the each-way value of the race. THOUGHT WORTHY (10/1) Trainer J Gosden Jockey W Buick Gosden, who has won last two runnings, always regarded this colt as Leger material. Clever ride from jockey to win main trial, the Voltigeur, confirmed that view. Jockey booking suggests he is stable No1 ahead of Michelangelo. URSA MAJOR (16/1) Trainer T Carmody Jockey J P Murtagh Improving Irish colt on a roll. Stamina no problem having won Irish Leger trial over trip last time. Upset the applecart that day but most of winning done on soft or heavy so more than showers required if he is to get favoured surface.