Tom Burton scored twice as Peacehaven came from behind to win 2-1 at Tonbridge Angels in Ryman premier.
The Magpies trailed to a 15th-minute penalty from Lee Carey but Burton levelled four minutes later after Lloyd Cotton played a great ball into the penalty area.
Then on 31 minutes James Fraser’s cross was controlled and finished by the advancing Burton.
Lewes suffered a 3-0 defeat away to Leiston.
Gareth Heath opened the scoring on ten minutes with a left-foot strike into the top corner and Darren Miller doubled the advantage on 21 minutes after being played through by Danny Block.
The Rooks responded well but conceded a third on 68 minutes when Craig Parker slid home a cross.
East Grinstead had goalkeeper Seb Bos sent off as they crashed 6-2 at Whyteleafe in the Robert Dyas League Cup.
Bos was dismissed 12 minutes from time for conceding a penalty which Greg Andrews converted for his hat-trick to make it 4-2.
Trailing 3-0 at the interval, the Wasps had got themselves back in the game with goals from Stefan Joseph and Emiliano Liyrst.
Max Thoms and Barney Boutwood got the goals as Arundel won 2-1 at Lancing to reach the semi-finals of the Sussex RUR Cup.
They established a 2-0 lead inside 17 minutes and held on despite Craig Knowles reducing the deficit just past the hour-mark.
Read reaction to Peacehaven's win from manager Tony Coade in The Argus tomorrow.
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