Bangor were also convincing winners in the T20 Trophy clash beating Cregagh by 38 runs.
Opener Sam McMillan led the way with a superb 62 (ten fours) as Bangor made a strong start batting first.
Former New Zealand international Ian Butler struck three huge sixes in a nine-ball 21, well caught on the long-on boundary attempting a fourth.
Australian professional Connor Brown stroked five boundaries in a breezy 30, adding 58 in seven overs with McMillan as Bangor continued to attack.
There was also a late flurry as Johnny Parker and Michael Skelly added 22 from the last ten balls in a final total of 166 for seven – Adam McCormick taking three wickets.
The chase got off to a terrible start with both openers gone inside two overs. Bob Moore (37) and Jonny Moore (28) attempted to salvage the innings, but Bangor caught and fielded well, and in truth Cregagh never threatened the target.
Angus Farrell (two for 17) was the pick of the bowlers as Cregagh were restricted to 128 for seven.
“We have played some good T20 cricket now for three years, with a good pattern and hopefully we can take that form into our league campaign for the rest of the season,” said a very happy Bangor captain Johnny Parker afterwards.
“I’m overjoyed for Sam McMillan to get runs and the Man of the Match award. It’s a just reward for all the hard work he has put in as he’s had a tough season finding strange ways to get out and also getting a few tough decisions.
“Our bowlers did really well especially Angus Farrell and Will Simpson who squeezed them hardly conceding any boundaries. Angus in particular had a tremendous spell and really strangled the innings. It was great to have the runs on the board and our bowling unit with pace off did superbly well.”