Prospectus comes home well clear© Photo Healy Racing
Prospectus was the second leg of a 109.5/1 Down Royal double for Gavin Cromwell.
The seven-year-old gelding went off a well-backed 9/4-favourite for the rated novice chase on the card.
Brien Kane worked him to the front two out as Great Khan made a mistake and the pair soon asserted.
The winning distance was 20 lengths back to the aforementioned Great Khan (5/1).
Gavin Cromwell said: "I wasn't sure about the ground today. I know he wants an ease in the ground but before on heavy ground he didn't jump that well.
"He jumped well today. He never travelled really well but Brien gave him a smashing ride and kept him up to his game.
"He's been very in and out but delighted to get that."
Cromwell also saddled Demphon (33/1) to win the Adare Manor Opportunity Handicap Hurdle.