Ninetieth Minute gave the Irish their seventh winner of the Cheltenham Festival as he powered clear in the hands of Paddy Flood to win the Coral Cup.
The Tom Taaffe-trained 14-1 chance travelled superbly throughout the two-mile-five-furlong contest and took up the running soon after jumping the second-last.
He showed a smart turn of foot to put distance between himself and his rivals and although Mirage Dore stayed on late up the hill, Ninetieth Minute had a length and a half in hand at the line.
Pause And Clause (9-1) rewarded each-way backers by finishing third, while Star Of Angels (40-1) was fourth.
Flood said: 'You can't describe the feeling, it's just 'wow'. People say it's the best feeling ever, but you don't understand until it happens. It's powerful.
'He didn't travel early, he didn't travel great. He's a big horse, he has a big stride on him and it took me the first half of the race to get into a rhythm.
'I didn't get a nice position until we got to the top of the hill, but to be fair to him he's as tough as nails. All his races he's won this year I've gone on with him early and he gallops on. Tom has been super to me this season, he's been great. I can't thank him enough.'
Weatherbys Champion Bumper
Dunguib turned the Weatherbys Champion Bumper at the Cheltenham Festival into a procession with a brilliant victory in the hands of Brian O'Connell.
Philip Fenton's six-year-old was sent off a well-backed 9-2 chance and was pulling his rider's arms out for much of the extended two-mile contest.
O'Connell only had to let out an inch of rein turning for home and his mount quickly scooted clear, passing the post 10 lengths clear of Some Present.
Rite Of Passage was sent off the 5-2 favourite after plenty of money during the course of the day, but he had to settle for a creditable third.
Willie Mullins had no less than eight runners in his search for a seventh Champion Bumper win - but none of them could get near the runaway winner.
