WITHAM TOWN booked their play-off berth after recording a ninth consecutive win.
Sam Taylor and James Stevens scored the goals as Garry Kimble's men ensured themselves of a top-five finish.
The game was delayed for 15 minutes due to traffic problems delaying opponents Brentwood and the referee.
And it took until the 50th minute for Town to go ahead when Taylor's intended cross went in.
Stevens sealed the win with the last kick of the match, eight minutes into injury-time.
The win takes Witham above Aveley and into fourth place in the standings with one game to go.
They will face either Maldon & Tiptree or Thamesmead away in the play-off semi-final next week, depending on Saturday's results.
Reaching the play-offs is a fine achievement for Kimble's men in their first season back in the Ryman League.
They moved into the play-off places with a 1-0 win over Needham Market on Saturday.
A goal from top scorer Rob Whitnell was enough for the home side to see off their Norfolk visitors.
The goal came when he slotted in Taylor's cross after eight minutes – and despite dominating the clash, the home side were unable to add a second.