Spalding United completed a fifth successive away win and took the derby honours again.
Second-half goals by Danny Brooks and Luke White sealed a double over Peterborough Sports, having beaten them by the same scoreline at the Sir Halley Stewart Field on Boxing Day.
Once again the Tulips turned in a highly commendable performance and such was the standard of their play that goalkeeper Michael Duggan, on his 250th appearance for the club, was never seriously tested.
By the interval Spalding should have held a comfortable advantage on the number of scoring opportunities created.
But they had to wait until the 66th minute before breaking the deadlock with a superbly executed penalty by Brooks after Jenk Acar had been brought down just inside the area.
In the third minute of added time, White made it 2-0 following an assist from fellow substitute Scott Floyd – both teenagers having been introduced to the action inside two minutes of each other midway through the second half at the expense of James Hugo and Acar respectively.
White had the ball in Sports’ net in the 78th minute but the strike was ruled out by a marginal offside decision.
From the outset, the Tulips’ pace and movement from back to front was posing problems - as were the long throws of Hugo. One found the head of Ellis Humble whose effort was hacked clear of the line.
Skipper Gary King’s 30th-minute free-kick from 25 yards rattled the woodwork with goalkeeper Dan George beaten.
Before the interval, George dived bravely at feet to smother another effort.
Early in the second half Conor Marshall, enjoying a good game at right-back, carved out an opening for Ben Davison who fired over the bar from the edge of the area.
Jonny Lockie, who put in a good shift, was only denied a clear shot by the influential Richard Jones in the heart of the Sports defence.
In their best spell in attack, former Spalding striker Avelino Viera worked his hardest to break the deadlock but was never able to get too close to Duggan’s goal.
Chris Rawlinson’s side are on the road again on Wednesday at Carlton Town.