Trained by Willie Mullins, Riven Light plied his trade over hurdles since arriving from France but with his attentions switched to the level, he has made giant strides, winning a big pot at Galway over just a mile.
Upped to Listed level for one of the feature races on the fourth day of the Harvest Festival, he never looked in any danger under Kevin Manning.
The 11-8 favourite put the race to bed some way out and while Dermot Weld's Zawraq, returning from a long absence, closed to within three-quarters of a length, he never looked like winning.
Manning said: "It was a great spare ride to get, he's a smart horse. As soon as I came off the bend, he was gone.
"He was doing nothing in front, but I think he's a very smart horse.
"Willie is a pleasure to ride for and as soon as I moved on him, it was all over."