Organisedconfusion is driven to the winning line by Nina Carberry
Organisedconfusion, a 12-1 shot trained by Arthur Moore and ridden by his niece Nina Carberry, won the Irish Grand National at Fairyhouse by five lengths.
Carberry timed her challenge expertly on the six-year-old to beat the Dessie Hughes-trained Western Charmer (16-1).
Sunnyhillboy, the 6-1 favourite, stayed on well to take third, with Quiscover Fontaine (33-1) in fourth.
Organisedconfusion was the youngest horse to be successful in the race since Tartan Ace (also six) in 1973.
Deal Done helped force a generous pace and despite being headed by Hughies Grey at halfway, he found himself back in front inside the final half a mile.
Western Charmer, Deal Done's stablemate, loomed up and looked a huge threat.
There were also plenty of other horses in with chances at the second-last, including Quantitativeeasing, the mount of Tony McCoy.
But it was Carberry who finished the strongest in the spring sunshine.
Organisedconfusion had only previously run as far as two miles and five furlongs, so his stamina over a further mile needed to be taken on trust.
Carberry dropped her mount right out inside the early stages, though, and only asked him to take closer order late on.
Her brother, Paul, denied the chance to ride ante-post favourite Beautiful Sound as the reserve failed to make the cut, never figured on Backstage.
Moore had won the race as a jockey in 1971 on Kings Sprite, and as a trainer with Feathered Gale in 1996.