Ken Condon has confirmed Success Days will definitely run in the Investec Derby at Epsom on Saturday.
The grey colt has won two pre-eminent trials for the Classic, the Ballysax and Derrinstown Stud Derby Trial, and has been supplemented at a cost of £75,000.
While the ground is unlikely to be as soft at Epsom as it has been for his three impressive wins this season, Condon has seen enough encouragement in the forecast to suggest the ground will not be fast.
"We've put him in," said the County Kildare handler.
"There are thunderstorms due on Friday, someone tells me, and they are due some rain.
"Andrew Cooper (clerk of the course) does a superb job with the ground and it is always a little bit slower on the Friday, so if they get some rain I can't see there being any sting in it.
"Saturday looks set to be lovely, a picture-perfect Derby day, and we'll be there.
"He's won the best two trials in Ireland and he certainly deserves his place in the line-up.
"People can say he's been winning in small fields and on bad ground but the ground is always soft in Ireland in the spring.
"I'm sure he'll run a good race."