Hawke’s Bay chipped away at the deficit in the following rounds of pairs and singles to trail 38-34 after round three.
However, another good round of fours for PBEC – three wins from four games – put them ahead 50-38 at the end of the first day.
On day two, Hawke’s Bay again secured more wins in the pairs and singles rounds to cut PBEC’s lead to 75.5-68.5 after round six.
It left PBEC needing at least a win and a draw in the last round of fours, which they easily achieved, securing two wins and a draw.
PBEC’s stand-out player was Warren Gibb, who, in a purple patch of form, had seven wins from seven games.
Other top performances came from Karen Foster with five wins and a draw, Keith Setter with four wins and three draws, and Marise Raklander, Lois Lamont and Sean Haskins with five wins apiece.
The next representative fixtures are the Hone Trophy in Tauranga and the Bill Moore Trophy event in Whakatāne at the end of April.