Eoin Bradley was a key player in Derry's league victory on Sunday
Derry impressed as they eased to an Allianz NFL Division One success at Ballinascreen on Sunday.
The Oak Leafers took control of the game after a tight first 20 minutes and they led 0-9 to 0-5 at half-time.
Eoin Bradley hit two points after the break and his brother Paddy was soon scoring after being brought on.
An Eoin Brown goal sealed the points in a win which saw Eoin Bradley and Paul Bradley leading the scoring with five points each.
Derry: B Gillis, B McAlary, SM Lockhart, G O'Kane, P Cartin, B McGoldrick, C McKaigue, F Doherty, J Diver, E Lynn, J Kielt, B Mullan, E Brown, E Bradley, P Bradley.
Westmeath: G Connaughton; F Boyle, K Gavin, J Keane; M Ennis, D Heavin, W Murtagh; D O'Donoghue, D Duffy; P Kelly, J Smyth, D Harte; T McDaniel, D Glennon, D Dolan.