Welling United moved to within three points of the Blue Square South play-off places thanks to a 2-1 win over Bath City.
Charlie Sheringham and Loui Fazackerley scored the first-half goals for the Wings, who climb to seventh.
Manager Andy Ford told BBC Radio Kent: "We cannot quite get in those play-off slots. Some others lost so it has tightened it up a bit."
Dover, Maidstone, Tonbridge, Dartford and Margate also won.
Dover's 2-1 win at Horsham means they are 17 points clear at the top of the Ryman Premier Division. Shaun Welford scored the winner, having hit the woodwork on three separate occasions.
Manager Andy Hessenthaler said: "After conceding a penalty, where I don't know what the ref was doing, we responded and it was a comfortable win."
We lose a sucker punch of a goal just before half time and gave them a sniff
Ramsgate assistant manager Danny Ward on their game with Maidstone
Maidstone United came from 2-0 down to beat Ramsgate 3-2 in the Kent derby. Lloyd Blackman grabbed the late winner to put Maidstone into the play-off zone.
Maidstone co-manager Lloyd Hume said: "It was a typical Kent derby, end-to-end stuff and I am glad we came out on top."
Ramsgate assistant manager Danny Ward added: "For the first half we dominated. We should have been four or five up. We lose a sucker punch of a goal just before half time and gave them a sniff."
Tonbridge are third thanks to a 3-0 win over Canvey Island. Anthony Storey, Jamie Cade and Carl Rook scored the goals.
Manager Tommy Warrilow said: "They were one place below us so it was very important we won to try to get as close to Dover as possible."
Dartford had their best result of the season, beating promotion chasing Carshalton 2-0. Tommy Osborne, who scored the first goal of his Dartford career in November, scored the first goal.
Although 14th in the table, manager Tony Burman says teams in the promotion chase need to look over their shoulder.
"They will have to, but we are also looking over our shoulder at teams below us," said Burman.
"Three or four wins and people say we may get into the play-offs and that is what we are aiming to do."
Margate got their first win in five, beating Harlow 4-2. Cray Wanderers missed the chance to go top of Ryman South as they lost 2-1 to Godalming. Ashford and Whitstable also won.
BLUE SQUARE PREMIER Maidenhead United 4-0 Bromley Welling United 2-1 Bath City
RYMAN PREMIER DIVISION Carshalton Athletic 0-2 Dartford Horsham 1-2 Dover Athletic Maidstone United 3-2 Ramsgate Margate 4-2 Harlow Town Tonbridge Angels 3-0 Canvey Island
RYMAN DIVISION ONE SOUTH Folkestone Invicta 0-2 Worthing Godalming Town 2-1 Cray Wanderers Walton Casuals 0-3 Ashford Town Whitstable Town 5-1 Chipstead
RYMAN DIVISION ONE NORTH Ilford 0-1 Chatham Town Thamesmead Town 2-1 Ware
BULMERS CIDER KENT LEAGUE PREMIER DIVISION Beckenham Town 1-3 Hythe Town Deal Town 3-3 Lordswood Greenwich Borough 3-3 Erith Town Norton Sports 0-1 Herne Bay Tunbridge Wells 2-4 Erith & Belvedere
KENT SENIOR TROPHY ROUND TWO Faversham Town 2-3 Orpington Sevenoaks Town 3-2 Croydon VCD Athletic 4-0 Crockenhill
VANDANEL KENT COUNTY LEAGUE PREMIER DIVISION Bearsted 1-1 Coney Hall Bromley Green 0-1 Hollands and Blair Cray Valley 2-0 Fleet Leisure Lewisham Borough 2-1 Snodland Phoenix Sports 2-2 Rusthall Stansfield 5-2 Milton & Fulson United
DIVISION ONE APM Mears 2-3 AFC Sheppey Greenways 0-0 Bromleians Sports Guru Nanak 3-1 Oakwood Hawkhurst United 0-1 Farnborough Metrogas 1-1 Tudor Sports New Romney 3-1 Lydd Town Otford United 3-4 Kennington Staplehurst & Monarchs 1-1 Canterbury City Sutton Athletic 3-0 Chipstead Tonbridge Invicta 2-2 Bridon Ropes
DIVISION TWO Borough United 6-1 Chislehurst Bredhurst Juniors 3-5 AFC Sevenoaks Charlton Ath Comm 5-1 Wickham Park Erith 147 0-3 Fleetdown United Halls 1-2 Eltham Palace Larkfield & New Hythe 4-2 Borden Village OPK 0-4 Old Bexleians Swale United 3-2 Woodstock Park
EASTERN SECTION LES LECKIE CUP Lanes End 3-1 Premier
SUNDAY
RYMAN DIVISION ONE SOUTH Kingstonian 1-2 Sittingbourne (1.00)
FRIDAY (BOXING DAY)
BLUE SQUARE SOUTH Bromley v Welling United (1.00)
SATURDAY
RYMAN PREMIER DIVISION Canvey Island v Dartford Dover Athletic v Maidstone United Hastings United v Tonbridge Angels Ramsgate v Margate
RYMAN DIVISION ONE NORTH Chatham Town v Thamesmead Town
RYMAN DIVISION ONE SOUTH Ashford Town v Folkestone Invicta Cray Wanderers v Kingstonian Sittingbourne v Whitstable Town
BULMERS CIDER KENT LEAGUE PREMIER DIVISION Croydon v Sevenoaks Town Erith Town v Lordswood Erith & Belvedere v VCD Athletic Greenwich Borough v Deal Town Herne Bay v Faversham Town Holmesdale v Sporting Bengal Utd Hythe Town v Norton Sports Tunbridge Wells v Beckenham
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