Bangor will play Knockbreda in this season's Championship promotion/relegation play-off after they secured runners-up spot in the Premier Intermediate League.
Lee Feeney's side held their nerve to beat nearest rivals Armagh City 3-1 on Saturday to finish second in the table.
Jack Upritchard opened the scoring for the Seasiders in the 37th minute but Armagh equalised just two minutes into the second half.
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A late brace from Ben Arthurs saw Bangor over the line, the striker scoring four minutes from time to put the Seasiders in front before wrapping up the win with his second of the game from the penalty spot in the 89th minute.
The result leaves Bangor four points clear of Armagh City and into a play-off with Knockbreda.
The first leg will be played on Tuesday night, May 10 at Clandeboye Park with the return leg four days later at Breda Park.
Newington have already been promoted after the won the Premier Intermediate League title last Saturday.
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