Cause Of Causes made light work of very testing conditions to give Ireland victory in The Ladbroke at Ascot.
The Gordon Elliott-trained four-year-old sprouted wings between the last two flights, as gallant top-weight Petit Robin appeared as if he had done enough.
Davy Condon's mount looked as if he had just joined in and rattled past Nicky Henderson's runner after the last, winning by four lengths from his fellow 25-1 chance.
Elliott said: "We were worried about the ground, but we thought he had a right chance if he did handle it.
"We brought him over a couple of days earlier as he's not a great traveller. The lads have worked with him at home and everyone has done a great job with him.
"We're not bothered what the handicapper does now as this was a good pot. He's a gentleman of a horse to deal with and it's nice to win a high-profile race.
"He could maybe go for the Betfair Hurdle at Newbury and could even be a horse for something like the Ebor in the summer."
Condon, who was given a four-day whip ban (January 6-9), added: "He wouldn't be in love with that ground but he had to go through it like the rest of them.
"He's so genuine and when I pulled out wide up the straight he flew. I was struggling turning in but when I pulled him out, he took off. I thought at the second-last I would win.
"He deserved a big one. He's been second in a Galway Hurdle and third in the Greatwood."
22 September 2014Cee Bee sets sail for Tipperary
Hannon waits on Kingman news
Educate tops Cambridgeshire weights
Main Man in Royal Lodge frame
Fad sights set on Rockfel
Mirza aiming for Abbaye joy
Muthmir run hinges on ground
Minalisa team mull autumn options
Classic hopes for Halford pair
Marnane pair take a break
Eagle the highlight for Smullen
X-Factor makes it Peckham first
Cooper edging closer to return
River 'possible' for Royal Lodge
Nash eyeing Aintree bid for Busy
Ajjaadd team seek autumn aim
Fitz fine following comeback run
Dark team to mull options
Glory in Abbaye frame
Ascot on Silk radar
21 September 2014Brooch adorns Smullen century
Together takes Gowran spoils
Chrome beaten in Parx return
Fab Fitz back in business
Ayr raid heaven sent for Doyle
Improving Angel lifts Trophy
Hunter hits the target at Ayr
Pilot flies to Newbury glory
Close gets Silver call
Toocool too good in Mill Reef
Dark lights up in Clyde
Hill stars at Newbury
20 September 2014King Louis strikes Ayr gold
Yeenaan takes control
Wannabe Yours heads Joel list
Providence supplemented for Rockfel
That could tackle fences this year
Bell saddened by Wigmore article
Limato out of Mill Reef
Horse welfare 'priority' - BHA
Four-timer for magical McCoy
Accipiter comes good for Wall
Hawk leads treble swoop for Hughes
Bamford wants a Gold Watch
Ainippe samples joy of six at Ayr
Goldie pair on Gold run
Angel of the north heads to Newbury
Candy issues Limato Reef advisory
Glorious bids to protect Legacy
19 September 2014Perfect return for Maguire
Rebel has a cause at Listowel
Ryan quartet in Ayr raid
Varian swoops for Marshall
Simcock aims high with star duo
Bolster back on Gold trail
Fahey chasing Newmarket Millions
Time called on Dude career
Makin off to a flyer at Ayr
Festival stalwart Celestial retired
Guest banking on Memory at Ayr
Dettori sweet on World rule
Baraweez on track for Ascot
Maguire raring to go
Watchable handed low Gold draw
Palmer mulls Aktabantay options
Bronze seeking Newmarket gold