Diamond Cauchois led home a one-two for Gordon Elliott in the Ladbrokes Ireland Boyne Hurdle at Navan.
Rank outsider Maggio took them along in the Grade Two contest but was tackled on either side by Diamond Cauchois and Bapaume as they turned for home.
Elliott's 4-6 favourite mastered Bapaume after jumping two out, with Willie Mullins' runner stopping quite quickly, and Diamond Cauchois stormed home to score by nine lengths, with his stable companion Lieutenant Colonel catching Bapaume for second.
Elliott said: "He's a grand horse and loves that soft ground. The ground will probably decide where we go with him but he's won two good pots for us this year so we are very happy."