Cheltenham Festival 2012: trainer Nicky Henderson's stable lad in £1m betting coup Murphy put five of the stable's best horses in an accumulator before Christmas when they were at decent odds and, after Sprinter Sacre, Simonsig, Bobs Worth and Finian's Rainbow all won on Wednesday, it all rolled over on to actor Jimmy Nesbitt's Riverside Theatre who, for much of the race, looked an unlikely winner. Had the horse lost, Murphy would not have picked up a penny. Murphy, 28, who was with Henderson before leaving to gain experience in America, returned to work for the trainer as deputy head-lad to "Corky" Browne, who has held the position since Henderson took out a licence in 1978. He has been groomed to take over when Browne retires. In the yard at 5.30 every morning, his duties include riding out, man management and, particularly, patching up the everyday knocks and bumps that racehorses pick up. He would certainly know his way round a bandage, that is for sure. Among the horses he rides out on a daily basis is Finian's Rainbow, who caused an upset in Wednesday's Queen Mother Champion Chase by beating the Irish champion, Sizing Europe. The irony is that he has comfortably out-earned his "guv'nor" this week - indeed this season - and he could now afford to have several horses in training with him. Trainers roughly earn 10 per cent of the prize-money. Even with six races under his belt and the prospect of landing today's Gold Cup, Henderson's actual percentage would not be one-tenth of what his deputy head lad won on Friday.