PORT Saints upset Football Mid North Coast Premier League competition leaders Wallis Lake in round 15.
The loss was Lake's second of the season.
Port United's 8-0 thumping of last placed Wingham means United have moved within one point of Lakes in the race for the minor premiership.
Taree's top five aspirations were dealt a further blow when Camden Haven beat the Wildcats 3-1 at Omaru Park.
The Wildcats are now three points outside the five.
Old Bar's faint semi-final hopes were also snuffed out when beaten 4-1 by Macleay at Kempsey, while Kempsey Saints accounted for Port FC 4-3.
Wallis Lake leads on 33 points from Port United on 32, Camden Haven 24, Kempsey Saints 22, Macleay 22, Taree 18, Port Saints 17, Port FC 16, Old Bar 14 and Wingham on six.
In reserve grade unbeaten Wallis Lake was held to a 1-1 draw by Port Saints.
Taree defeated Camden Haven 2-1 while Port FC accounted for Kempsey Saints 2-0.
Macleay edged out Old Bar 2-1 while Port United thrashed Wingham 13-1.
Wallis Lake leads on 41 with Port United second on 38. Macleay has 30, Taree 26, Port FC 22, Port Saints 17, Kempsey Saints 17, Old Bar nine, Wingham nine and Camden Haven four.