Band Of Outlaws gave trainer Joseph O'Brien his first Festival winner with a convincing two-length success as the 7-2 favourite under JJ Slevin in the Boodles Juvenile Handicap Hurdle.
The four-year-old started out towards the rear but gradually made his way through the pack before taking over after jumping the final hurdle to beat Gordon Elliott's Coko Beach by two lengths.
Ruby Walsh was third on Willie Mullins' Ciel De Neige.
4.50 #CheltenhamFestival
— RTÉ Racing (@RTEracing) March 13, 2019
1st Band Of Outlaws 7/2f
2nd Coko Beach 14/1
3rd Ciel De Neige 17/2
4th King D'argent 25/1https://t.co/8lRbmf9jhd #RTEracing