Ten-man Boston Town slipped down to 20th in the United Counties League Premier Division following Saturday’s 3-2 reverse against Northampton Sileby Rangers.
Curtis Revell met Michael Hardy’s cross to give the Poachers a 1-0 lead at the interval.
However, the away side netted twice in quick succession after the break to turn the game on its head.
Their second was a penalty, awarded for Richard Ford’s hand ball on the goalline, which saw him sent off.
Revell netted his second of the day to pull Town level, this time meeting a Loz Lambley delivery.
But the away side left with three points following a late winner.
Michael Byrne scored twice for Sileby with Brian Farrell also on target.
Town now host Harrowby United on Wednesday (KO 7.45pm).