Slate House registered his first Grade 1 victory when landing the Ladbrokes Kauto Star Novices Chase at Kempton for trainer Colin Tizzard.
The seven-year-old gelding cruised to the front in the hands of Robert Power when approaching the final fence and kept on gamely in the run-in to hold off the favourite Black Op by a length and a quarter.
The son of Presenting has now won five races under rules including the Grade 2 Supreme Trial Novices Hurdle at Cheltenham.
The Wilson Dennison formerly owned gelding started his career between the flags when running out a 10-length winner of his four-year-old maiden at Tattersalls for handler Ian Ferguson.
The gelding was then bought by Tom Malone for £260,000 at the Cheltenham Festival Sale.
The result was a 1-2-3-4 for ex-Irish Pointers, with Slate House leading home Black Op, Danny Whizzbang and Jarveys Plate.
After the race Tizzard told RacingTV: "It nearly makes up for Cheltenham, but that has just worked out fine.
"Robbie is brilliant at riding like that. He goes to sleep going past the stands and you think, 'how well is he going?'. In the middle of the back straight he pushed him up a bit and he was right on the bridle - it was a peach of a ride.
"He is a different horse this year. He has just grown into himself and we have a lovely, strong stayer now."
Tizzard added: “Whether we have a run in between now and the Festival, I don't know. We are only in December, but I doubt he will.
"He is a proper horse now, we have a Grade One in the bag and there is still quite a bit of the season left.
"It would be nice to think he could be back for the King George next year."
%uD83C%uDFC6 Slate House is a G1 winner!
— Racing TV (@RacingTV) December 26, 2019
He captures a dramatic Kauto Star Novices' Chase @kemptonparkrace for @colintizzard & @Robbie_Power_, to make it three victories from four starts this term!
%uD83D%uDC40 A victory for Power & Tizzard - an omen for Lostintranslation in the King George later? pic.twitter.com/pUqPcrk8ka
