Bognor needed a late Luke Nightingale equaliser to salvage a 1-1 draw against struggling Whitstable at Nyewood Lane in Ryman division one south tonight.
Burgess Hill's match at home to Faversham Town was postponed due to a waterlogged pitch.
In the premier division, Hastings United went down 3-0 at Billericay while Horsham lost 2-0 at Bury Town.
Rye United caused an upset with a 3-2 win at Worthing to reach the quarter-finals of the Sussex Senior Cup. Duncan McArthur, Dan Leach and Matt Maclean scored with George Gaskin twice replying.
Spencer Slaughter (Hassocks) hit the only goal as Sussex won 1-0 away to Royal Navy.
More on all these games in The Argus tomorrow.
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