Exciting prospect Un De Sceaux came unstuck on his fencing debut when falling at the third-last with the Killinan Beginners Chase his for the taking at Thurles.
The 1-8 shot had his 15 rivals well strung out and was going great guns in front when he crumpled on landing and parted company with Ruby Walsh.
The Willie Mullins-trained six-year-old, unbeaten in all his nine previous starts, was well clear and outclassing the opposition.
However, his demise left Jessica Harrington's Mr Fiftyone (8-1) to pick up the pieces in the hands of Robbie Power and score by five and a half lengths from 66-1 outsider Smokey Joe Joe.
Mullins reported Un De Sceaux to be none the worse for his fall, apart from a small cut.
"He came out of it well and is grand apart from one little cut which any horse can get," said the County Carlow trainer.
"I was very happy with him prior to the fall and it was just one of those things and it was a novicey mistake. I just hope he won't make a habit of it."
The winning trainer said: "They've got to jump. He jumped great, but Robbie said they went Arkle (two-mile) pace and he finished tired but was entitled to be.
"They went some rattle and I'm delighted he has won as he deserved it.
"He'll probably go to Leopardstown over Christmas and is in the Grade One two-mile chase - with that under his belt he should improve a lot."
The Mullins team were still able to get a double on the board through Max Dynamite and Clondaw Court, both owned by Rich Ricci.
Clondaw Court made all to take the Rock Of Cashel Hurdle in good style.
Supporters of the 1-2 shot never had an anxious moment. Allowed to dictate matters, Walsh did not have to ask to his mount a serious question as he cruised home by four lengths from Mireya.
Mullins said: "I was going to go novice chasing with him as he jumps well but he can be difficult to train so I said we'd start him off in a few hurdle races.
"His problems have only been niggly ones but it's easier to keep horses sound over hurdles than fences.
"If he stays right he'll go novice chasing, otherwise he'll be kept for those staying hurdles. He has lots of ability."
Former smart Flat performer Max Dynamite (5-4 favourite) made a winning jumps debut in the Cahir Maiden Hurdle.
Eighth in last year's French Derby, this €200,000 purchase looked a class act.
Leading between the final two flights, he jumped the last well for Walsh and went on to score easily by six and a half lengths from Phil's Magic.
"Max Dynamite jumped and settled well," said Mullins.
"We thought he might be hard to ride but he worked out an easy ride and did it nicely for his first time over hurdles.
"Ruby thought he should go up in trip, I wasn't too pushed but he has plenty scope."
Former smart bumper performer Golantilla (4-7 favourite) made hard work of landing the odds in the Holycross Maiden Hurdle.
Adrian Heskin took it up between the final two flights, but Tony Martin's runner could not shake off Ryansbrook who was only half a length down at the line.
Martin said: "You'd have to be pleased with that and the way he settled and jumped.
"He'll definitely improve for that run and we'll see in a fortnight's time where to go next.
"You'd be encouraged by the way he jumped and down the road he could step up in trip."
Heskin, riding Golantilla for his main retainer owner Barry Connell, was completing a double after earlier steering Federici (13-8 favourite) to victory in the www.thurlesraces.ie Handicap Chase for trainer Edna Bolger.
"He had a nice run here the last day and is a progressive horse," said Bolger.
"We'll stay local and run him at Limerick over Christmas and hopefully Adrian is available to ride him. He's a big part of this horse and gave him a smashing ride today and saved him all the way."
The well-supported Leave At Dawn (11-10 favourite) duly obliged for trainer Charles Byrnes and owner JP McManus in the Horse & Jockey Handicap Hurdle in the hands of Davy Russell.
Gordon Elliott got on the scoresheet thanks to the Jamie Codd-partnered Top Man Marty (20-1) in the Thurles INH Flat Race.
