THE top of the Derby market may be dominated by Ballydoyle colts, but that does not make it any less intriguing a puzzle.

Sir Dragonet surprised lots of people when, sent off at 14/1, he won his maiden on his racecourse debut at Tipperary, and he surprised a few when he won the Chester Vase. He was a 13/2 shot that day remember, only fifth in of the seven runners, a longer price than the two joint favourites King Ottakar and Technician, a longer price than his stable companion Norway. Now he is no better than 11/4 for the Derby.