Tara Andrews produced a trademark turn and left-footed rocket in injury time to seal a sensational come-from-behind 4-3 win over South Wallsend in Herald Women's Premier League at Alder Park on Sunday.
The Wolves were the dominant side for the majority of the match and held a 2-1 half-time advantage then were up 3-1 with 10 minutes of regulation time remaining.
But the Eagles scored three goals in the last 12 minutes of play to stay unbeaten after six outings and to extend their lead over the competition to six points.
Lauren Allan completed a match hat-trick when she added goals in the 80th and 86th minutes after she had scored from close range in the 40th minute.
Eagles coach Keelan Hamilton praised his side, who "just kept turning up".
"I'm ecstatic for our girls to get the win in the end but obviously it's heart-breaking for South Wallsend," Hamilton said.
"I thought for 75 minutes they were the better side and their energy was fantastic. They put us under a lot of pressure. They nullified our danger areas and were really good and deserved to be 3-1 up.
"But full credit to our girls, we just kept playing football. We weren't great on the day but we did what we needed to do and good sides play until the end."
It was a disappointing outcome for the Wolves, who had Matildas player Gema Simon in their starting side against the Eagles, but South Wallsend coach Cas Wright said there was plenty of positives to take out of the match.
"Our first half was amazing," Wright said. "We had the game and then a few things crept in and then fatigue in that last 10 killed us. But we know what we've got to do now."
The Wolves held a 2-0 lead until Allan's first goal after Ashlee Brodigan scored with a close-range tap-in on the 20-minute mark then a long-range effort in the 30th minute. Maryjane Mason gave them a 3-1 lead in the 68th minute.
Merewether drew level with Warners Bay on 12 points and second spot with a 4-3 win in the grand final rematch but went into clash at Myamblah Oval on Sunday without key players Jamee Ellis and Jane McDonald then lost central defender Sarah Hartree early in the second half to injury.
United had beaten the back-to-back minor premiers 4-3 in last year's championship decider for the second year straight.
Merewether led 3-2 at the break. Warners Bay opened the scoring in the fourth minute when Nadja Squires' finished with the rebound of a penalty she took that was parried by United goalkeeper Alison Logue.
Rhali Dobson levelled in the 28th minute when she scored with a penalty kick of her own. She extended the lead to 2-1 in the 33rd minute when she scored across the face of goal after Warners Bay attempted to clear a free kick taken by Logue. Then Ellie Withers made it 3-1 with a left-footed volley five minutes later.
Tara Pender closed the gap to one goal heading to half-time with a long-range shot which blasted into the top left corner.
Merewether took a 4-2 lead when Courtney Anderson scored in the 55th minute then Cassidy Davis hit back for Warners Bay when she scored off a corner in the 67th minute.
Warners Bay finished the stronger of the two sides but United hung on for a win Merewether coach Cassandra Koppen described as a turning point.
"Through the week we spoke about this game being a bit of a tipping point in our season," Koppen said.
"A win could see us sit towards the top of the competition standings but a loss might have us battling for finals. We spoke a lot about playing for the badge and the girls all stepped up and played with a desire we haven't had all year.
"At times it wasn't playing pretty football but we needed the result and were happy to get the win.
"When Sarah came off, I had a 14-year-old and 16-year-old in my backline and one of them had already played a full game."
In Wauchope, Alesha Clifford produced a match brace with goals in either half, Laura Hall converted from the penalty spot and Libby Copus-Brown also got on the scoresheet in a 4-0 win over Mid North Coast.
The Red Devils led 2-0 at the break.
The game between Adamstown and Thornton at Thornton Park was postponed.
Round 6 results:
New Lambton 4 (Lauren Allan 3, Tara Andrews) defeated South Wallsend 3 (Ashlee Brodigan, Maryjane Mason) at Alder Park. Half-time: South Wallsend led 2-1.
Merewether 4 (Rhali Dobson 2, Ellie Withers, Courtney Anderson) beat Warners Bay 3 (Nadja Squires, Tara Pender, Cassidy Davis) at Myamblah Oval. Half-time: Merewether led 3-2.
Wallsend 4 (Alesha Clifford 2, Laura Hall, Libby Copus-Brown) defeated Mid North Coast 0 at Wauchope. Half-time: Wallsend led 2-0.
Points: New Lambton 18, Warners Bay 12, Merewether 12, Wallsend 9, South Wallsend 9, Mid North Coast 6, Adamstown 0, Thornton 0.