El Fontan (11-1) ran out a fortunate winner of the Punchestown Gift Vouchers For Christmas Beginners Chase, thanks to a final-fence blunder from Mikael D'Haguenet.
Willie Mullins' 5-4 joint-favourite appeared to be enjoying himself in front and was still cruising when main market rival Mount Benbulben came to grief three from the finish.
Despite a sloppy jump at the next himself, Mikael D'Haguenet still looked to have matters sewn up, only to all but fall at the last, allowing El Fontan to go past for a two-and-three-quarter-length verdict.
Mullins said: "We took the bold option of making the running. He'd been schooling well at home and I was delighted with the way he jumped earlier in the race.
"I didn't dream that the going was going to be that testing. I'd say race fitness just caught him out."
Gordon Elliott gained some compensation for Mount Benbulben's spill when 6/4 market leader Tarquinius took the 10 Euro Admission Handicap Chase.
Money Spider confirmed the promise her jumping debut third when justifying 4-6 favouritism in the Ballymore GAA Christmas Fair & Family Fun Day 3-Y-O Hurdle.
John O'Shea's filly drew alongside Dayrina approaching the final flight and wasn't hard pressed to score by six and a half lengths.
1 October 2014Tapestry enters Arc picture
Dettori vies for World rule in Arc
Toocool has American dream
Berkshire on the comeback trail
Dettori given Ruler role
Estidhkaar 'on target' for Dewhurst
Australia leads Champions acceptors
Martin outlines Jack ground hopes
Raiding party heads Opera runners
Autumn aim for North
Shamkala sole Arc withdrawal
Force and Power top Abbaye list
Cadeaux team mull Caulfield date
Limato set for Redcar speed test
Cape set for Concorde test
Telescope sights set on Breeders'
Power primed to storm Abbaye
Creepy excels on chasing bow
Al Kazeem given Arc go-ahead
Buick makes Ivanhowe Arc link
Martin keen on Clonard
Cirrus heads Longchamp billing
Elite aim for Irving
Ribbons run hinges on Paris ground
Quick on course for Ces date
30 September 2014Power heads Abbaye market
No fitness worries for Lemaire
Beaux plans undecided
Foret-bound Byron enjoys workout
Perfect fencing start for Minstrel
Ted takes Roscommon honours
Rain fillip for Treve Arc challenge
Speed not an issue to River camp
Signal on course to Wow in Paris
Ivawood heads Millions field
Top fillies star in Chariot race
Point primed for Abbaye assignment
29 September 2014Logic ruled out for the season
Ansgar in Foret frame
Kalann team consider Champions bid
Peslier and Mosse hunt Arc mounts
O'Brien trio set for Longchamp
High hopes for Elliott team
Berry takes the rails route
River cruises to Beresford glory
Qualify swoops for O'Brien team
Minstrel ready for chasing bow
Tiggy Abbaye run not set in stone
Angel camp ponder Darley raid
Pineau ripe for new season
Mubtaghaa suited by joy of six
Fiesolana fired up for Foret
28 September 2014Keighley holds Court for Cheltenham
Mart makes Newland's day
Spin does the trick at Ripon
Angel heaven-sent for Tregoning
Tiggy takes Cheveley gold
Lodge proves a stroll in Park
Rosalie blossoms for hat-trick
Naylor seeking Paris prize
Integral on course for Chariot
Dettori anticipating 'vintage' Arc