Willie McCreery's Annamay made the best way home under Kieran O'Neill two furlongs out and held on by a length as Burrenbridge Lodge closed at the finish.
Trainer McCreery said of the 16/1 shot: "She had a terrible draw in Sligo last time. She had a good draw here and Kieran gave her a smart ride.
"She has just pulled up lame but I'm delighted with her win. She showed her pace to kick clear and I think she just got lonely in front."
Burrenbridge Lodge was second at 8/1. Port Elizabeth the 4/1 favourite took third and Thegondolier completed the placings.