Brackley slipped a step closer to relegation following a 1-1 Enterprise National League draw with Boston at St James Park.
The point leaves the Saints seven points away from safety with just three games remaining.
The hosts went ahead when Aidan Elliott-Wheeler headed home a fine cross from Tyler Lyttle in the 71st minute.
But the lead lasted only seven minutes, the Pilgrims drawing level from the penalty spot through Lenell John-Lewis after Luca Barrington was brought down in the box.
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