Tiger Voice roars in under O'Keeffe
He made headway, travelling well, to get into contention at the second last where Battleoverdoyen was clinging on to a narrow advantage.
O'Keeffe got his mount on an even keel and moved into the drive position and the pair kept on best to score by three parts of a length for Henry de Bromhead.
The winner returned at 11/4 from the 11/5 favourite in second.
O’Keeffe said: “He travelled away well and I got a nice lead into the race. He jumped super the whole way. He pecked a bit at the back of the last but in fairness he picked up well again and has done it nicely.
“He’s a horse that we can have a bit of fun with.”