Bury Town were defeated 2-1 by Lowestoft Town in the Suffolk derby, with the winning goal shrouded in controversy.
Jack Ainsley put the visiting play-off hopefuls ahead before Ross Bailey equalised to send the teams in level at the interval.
A penalty was awarded to Lowestoft just after the hour mark when former Bury-man Chris Henderson went to ground in the box, a decision which left the home side furious.
Ainsley converted the spot kick to move his side up into fourth in the Ryman League Premier table with one game to go.
Needham Market’s Ryman League One North play-off hopes hang by a thread after losing 2-1 at Soham Town Rangers yesterday.
The Marketmen looked to have secured a late victory when Brendon Heath put the visitors ahead after 80 minutes.
But goals from Buster Harradine and Matt Simpson completed a late comeback for Soham.
The defeat moved Needham out of the play-off places, who must now hope that Thurrock lose at home to Ware on Thursday night to keep their promotion aspirations alive on the final day of the season on Saturday.
Walsham-le-Willows completed a successful Easter weekend with a 3-1 win at home to Diss Town in the Thurlow Nunn League Premier Division.
The Willows had defeated Hadleigh United two days earlier, and extended their unbeaten run to four matches thanks to goals from Luke Austin and Lee Sim (2).
In the Thurlow Nunn League First Division, Team Bury lost 2-0 at promotion-chasing Haverhill Borough, while Needham Market Reserves thrashed AFC Sudbury Reserves 7-0 for the second time in three days.
Ipswich Town missed out on moving into the Sky Bet Championship play-offs as Bournemouth twice came back from a goal behind to share the points in a 2-2 draw at Portman Road.