Eastbourne Town moved to within two wins of claiming the County League title when they beat Worthing United last night.
A 3-0 away win sent Town to the top of the table, moving a point above Whitehawk.
Ady Colwell's side complete their programme with two trips to Crawley, against Three Bridges on Saturday and then Oakwood on Monday.
If they win both they are definitely champions, if not then Whitehawk - who are away to Ringmer on Saturday and at home to Sidley on Monday - could pounce.
Danny Simmonds gave Town the lead away to Worthing United last night with a 51st-minute penalty.
Chris Dicker doubled the lead 13 minutes from time before Nathan Millroy wrapped up victory in the closing stages.
In division two, Wealden's promotion hopes took a blow as they lost to Seaford.
Results, County League division one: Arundel 1 (Barnard 77) East Preston 0, Chichester 2 (S.Murfin 44, 80) Three Bridges 1 (Anderson 36), Wick 2 (Meehan 48, Hunt 64) Ringmer 2 (Scerri 46pen, Price 77), Worthing United 0 Eastbourne Town 3 (Simmonds 51pen, Dicker 77, Millroy 89).
Division two: Wealden 1 (Ottley 2) Seaford Town 2 (B.Dartnall 6, S.Dartnall 56).
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