LIA Painter and Tash Perry were on target as Chippenham Town Ladies fought back from behind to take maximum points at Porton.
The Bluebirds had triumphed 11-0 in the reverse fixture earlier in the season, but the hosts proved a much stronger outfit on Sunday and enjoyed much of the first half possession with the wind at their backs.
The Porton goalkeeper was not tested until the 20th minute, when Jess Pomfret had a shot saved after a solo run.
Home skipper Anna Crewdson scored direct from a corner to give her side the lead seven minutes before the interval, but Chippenham hit back soon after the break when Perry's pass gave Painter the chance to equalise.
Perry hit the winner midway through the half when she converted substitute Harriet Titcombe's cross from the right.
Chippenham Ladies travel to Clevedon Town B on Sunday.
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