On His Own advertised his prospects for April's John Smith's Grand National with an impressive return to action at Navan and is now favourite for the big race.
Having his first race since falling in last year's Aintree showpiece, the Willie Mullins-trained nine-year-old returned in style in the Ladbrokes Boyne Hurdle.
While his odds-on stablemate Thousand Stars trailed home last of six, the Graham Wylie-owned nine-year-old put up an impressive display.
Si C'Etait Vrai made a bold attempt to make all, but he could not match the challenge of On His Own (10-1) as Paul Townend's mount got home by two and a quarter lengths.
"I've been trying to find a suitable hurdle race for him. He was a novice (over hurdles) before today, but he's won a nice prize over hurdles now," said Mullins.
"Coming here, the plan was to give him another run over fences before the National but after winning today we might review that and he could have another run over hurdles," added Mullins.
On His Own has usurped his stablemate Prince de Beauchene, also in the same ownership, as favourite for the National, having been cut to 8-1 from 12-1.
Mullins blamed the ground for Thousand Stars' poor showing.
"Ruby (Walsh) said he just couldn't handle the ground," he stated. "He's unlikely to run at Cheltenham as the Aintree Hurdle is the one race we really have in mind for him."