Randalstown came within five minutes of pulling off a major coup as a goal-rush toward the end of a rain-soaked Banbridge saw Pegasus just about win out against a side they beat 5-1 a little over a month ago.
Pegasus enjoyed the best of the first half, Nadine Brown executing a penalty corner for the only goal of the half.
Alex Speers doubled the advantage in the 56th minute beginning a flood of goals as she deflected in Arlene Boyles corner strike. Randalstown responded with two in five minutes, though as first youngster Laura McAlpine scored from the left of the circle before Sharon Graham knocked home Rebecca Dallas' drag-flick.
But parity lasted just a minute as Kristy McCollum used the auto-pass to great effect on the edge of the circle, playing the ball to herself and penetrating the D to thrust home the crucial goal. Randalstown take a point but three losses from three means they are all but out.