Irish born jockey Graham Lee aboard Arcalis landed the opening Letheby & Christopher Supreme Novices Hurdle at the Cheltenham Festival.
Howard Johnson's charge was produced with perfection to challenge approaching the last by Lee and he streaked clear to win by six lengths from Npel Meade's Wild Passion, with Paul Carberry aboard, in the Grade One feature.
Dusky Warbler ran a big race back in third, a further half a length away.
The big Irish hope - Enda Sheehy's Justified and Chilling Place took the field along as the tapes went up and they were still there with three to jump.
Pat Fahy's Publican was tanking along but looked to get a little squeezed for room on the turn for home and never picked up as he had threatened to.
The admirable Wild Passion jumped the final obstacle just in front, but had no answer to the speed of the former big Flat handicap winner on the run to the line.
Arcalis's victory was a sweet success for big-money owner, Graham Wylie.
Afterwards, the winning owner added: "He is a good horse and I never lost faith in him. The ground wasn't right last time and he wasn't right either. There were certain horses in the yard that weren't right, and he was amongst them.
"He is a different horse on good ground and it is nice for Graham (Wylie) to get a Cheltenham winner."