An Eoin Houlihan point late in the tie gave St Fergal's victory in this final replay at Tullamore on Saturday.
After playing against the wind in the first half, the Laois side led by 0-5 to 1-1 at half-time, Jason Clancy's 22nd minute goal keeping St Rynagh's in it, and Rathdowney almost paid for their tally of 13 wides.
St Fergal's: B Campion; J Moynan, A Delaney, P Doyle; C Jones, M McEvoy (0-1), N Doherty; J Dowling, P Gray (0-1); J Delaney, F Egan (0-2), E Houlihan (0-3); P Russell (1-4), J Kavanagh, M Phelan. Subs : G Moore (0-1) for Kavanagh; T Drennan for Dowling.
St Rynagh's: C Kenny ; D Dervan, E Mannion, A Horan; R Hynes, N Corcoran, M Pardy; G Gardiner, C Claffey; R Devery, T Bennett, D Dunne; J Clancy (2-0), K Kelly (1-5), E Corcoran. Sub: J Moran for Devery.
Ref: J McGrath (Westmeath).