London Colney were beaten by Hoddesdon Town at home on Tuesday night.
Ben Andreos scored the only goal of the game as the Blueboys slipped to seventh in the table with two games left while the Lilywhites climbed to sixth.
The final two games are both against London Lions - at home on Thursday (7.45pm kick-off) and away on Saturday (3pm kick-off).
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here