Good ground is obviously important to Dual Gales and he left two poor efforts behind him to turn over the favourite, Total Excitement at odds of 14/1 in the Kilfeacle Maiden Hurdle.
A mistake at the last didn't help the market-leader but David Casey's mount proved the stronger on the run-in to prevail by a length and a half.
Unusually for a horse from the Willie Mullins yard, this Lord Of Appeal gelding's only previous success also came at a big price, 20/1 when scoring in a Listowel bumper in September 2007.
Niall Almond, stable representative, said: "I have this job for the week and we've had five winners! He'll stay hurdling until the end of the season. Willie is on his way here."
