The young Rebels comfortably saw off Waterford 1-24 to 0-8 at Páirc Uí Rinn.
The Deise’s campaign isn’t over yet – they face Limerick in a second playoff next Thursday.
Meanwhile North Tipp beat North Clare in their Celtic Challenge Under 17 hurling clash last night.
2-24 to 3-11 the final score in Cratloe.
