Paul Owens gave Coleraine the points with a memorable goal in an unremarkable game at Clandeboye Park on Tuesday.
Owens’ 93rd minute strike curled the ball past Graeme McKibbin from just over 20 yards, to sink Ards
The basement club are now left to hope that landlords Bangor win the Championship, and in doing so gift them an undeserved spot in the Relegation Play-Off.
However, on current form Ards might struggle against either Carrick Rangers of Institute.
Ards: McKibbin; Hall, Armstrong, Burns, Rodgers (45 Hunter); Faulkner, Cleary (80 Dougherty), Downey; Mitchell, Arthurs, Dougan. Subs: McClelland, Davidson, Muldrew
Coleraine: Ferry; Mullan (85 Stewart), Ogliby, Beverland, Lindsay; Owens, Harkin, Tommons, McIlmoyle (67 Wright - 77 Jennings); Browne, McDaid. Subs: Shannon, McNeill
Ref: R Crangle (Belfast)