Midnight River lands the William Hill Handicap Chase for Dan Skelton.
He jumped the last with just a rival before him and then pulled clear to triumph by a length and a half.
The trainer said: “He’s just a good horse that has always had great potential, and he’s done that off (a mark of) 151.
“He’s on the way up and it was a case of when we made the step up in trip.
“I felt Aintree was the right place.
“I was a bit concerned that Eldorado Allen was getting a soft lead, but we got a great start and he was never chasing the leader.
“The plan will be one run and then the Coral Trophy at Newbury.”