Holbein claims Chester Vase Hans Holbein advertised his Investec Derby credentials with an all-the-way win in the MBNA Chester Vase. It was a sixth win in the race for trainer Aidan O'Brien, who also won the Cheshire Oaks 24 hours earlier. Sent off the 7-4 favourite, Ryan Moore took no chances and bounced out of the stalls, controlling things from the front. From three furlongs out there was never any real doubt about the result as Storm The Stars and Medrano began to come off the bridle. The Montjeu colt really lengthened in the straight and powered away from Storm The Stars to win by a length and three-quarters Moore said: "I spoke to Joseph (O'Brien) who said he was very fit and well, and he was as I could barely pull him up. "He's quite laid-back but he finds a little bit when you ask him. "The form doesn't amount to a great deal at the moment, but he can only improve and he'll be better over further as well. "He went round here well enough so I don't see why he wouldn't act at Epsom." Betfred cut the winner to 16-1 from 33s for the premier Classic on June 6.