PNG won 7-0, on the back of Wednesday’s 17-0 rout, with Juliet Seri throwing a no-hitter with three strikeouts and four walks.
A three-run second innings sparked by Beverley Pasen’s double and a four-run fourth did the damage for PNG.
Emma Markis led the way with the bats for PNG with three hits and four RBIs, while 41-year-old Antonia Kinit had two hits and Nadia Bais an RBI on her one hit.
American Samoa had runners on base in the second innings from consecutive walks issued by Seri, but Denitra Langkilde’s line drive to first baseman Kinit led to a double play and snuffed out the danger.
Kelly Osterbrink (ASA) took her second loss of the 2015 Pacific Games, giving up nine hits in five innings.
Port Moresby 2015 softball sport competition manager, Ralph Tarasomo (PNG), confirmed the result meant gold for PNG and silver for American Samoa, and that game three scheduled for 10:00 on Friday would still go ahead.
Friday’s medal presentation will be made by the patron of PNG Softball and former Prime Minister, Sir Rabbie Namaliu.
By Robert Palme and Dr Pilipus Garpet, Games News Service