On His Own gave owner Graham Wylie a high-profile Irish success with a brilliant performance in the Goffs Thyestes Handicap Chase at Gowran Park.
Wylie's decision to transfer some of his horses to Willie Mullins when Howard Johnson was disqualified paid dividends in one of the big handicap chases of the winter.
On His Own (10-1) powered home in the hands of David Casey to take this valuable prize in great style.
He had been brought down when well-beaten on his first run for the Mullins team last month, but put in a superb display this time.
Leading five fences from home, the eight-year-old pulled steadily clear of the opposition to win by 13 lengths from Tullintain (12-1) with Jadanli (50-1) third and Adams Island (7-1 joint-favourite) fourth.
The John Smith's Grand National could now be on the cards for On His Own.
"I sort of forgot about him after Leopardstown. We thought we might have a squeak in the Paddy Power," Mullins told At The Races.
"He missed the break as there was very little room. He was still travelling well when he was brought down at the second last.
"Ruby (Walsh) missed the break today on Shakervilz and Some Target didn't jump great and Quadrillon made several mistakes and was back out at the tail of the field.
"On His Own was the only one of mine up there jumping. He's a big, strong horse and weight means nothing.
"He could be an Aintree horse and he'll be entered for the National.
"David (Casey) seems to get what's left. He's ridden lots of big winners on horses that have been overlooked by other jockeys. He always rides plenty of winners for us."
Zaidpour (11-8) lowered the colours of classy mare Voler La Vedette in the Grade Two John Mulhern Galmoy Hurdle.
Ruby Walsh dictated affairs on Willie Mullins' charge, firstly setting a slow early pace then letting Whatuthink do some of the donkey work on the final circuit of this three-mile contest.
Walsh set sail for home after the third-last and though Voler La Vedette (4-6 favourite) put in a strong challenge, Zaidpour always held the upper hand and won by a length.
The pair pulled a long way clear of Chicago Grey, who was third of the five runners.
Snow Spell (14-1) opened her account with a comfortable win in the Four Star Langton House Hotel Maiden Hotel.
Trained by Tom Foley and ridden by Tommy Treacy, the seven-year-old strode away from the 9-4 joint-favourites Primroseandblue and Inish Island to score by five and a half lengths.
Trainer Charles O'Brien enjoyed a rare success over jumps when Concrete And Clay (5-1) ground out a game win under 4lb claimer Matty Bowes in the Martinstown Opportunity Handicap Hurdle.
Leading two out, the eight-year-old stuck to his task well to beat Ghareer by three lengths with Golanbrook third.
O'Brien's travelling head lad Gerry Abbott said: "He got lost a bit at Fairyhouse the last day but finished well.
"He's the oldest horse in the yard and is a real favourite."