Wealdstone’s advantage at the top now stands at seven points thanks to their 3-2 win at St Albans City.
They scored their 24th goal of the season - more than anyone else in English football.
Dean Brennan’s side have more points than anyone in the country - Ross Lafayette’s penalty ended up deciding matters.
Dartford parted company with joint managers Jamie Coyle and Adam Flanagan after their 3-2 defeat to a Joey Turner-inspired Tonbridge.
“We wish them all the best for the future and thank them for there efforts over the last 14 months,” a Darts statement read.
Billericay and Havant weren’t in action on Tuesday but Hemel Hempstead were - and couldn’t close the gap. They went down 2-0 at Slough Town, Max Worsfold’s wonder goal confirmed the points.
Bath City are back on track - they eased past Hampton 3-0, who they always seem to beat.
Maidstone United are climbing - their 1-0 win at Dulwich Hamlet arrived as Ibby Akanbi struck the winner five minutes from time.
There were two 0-0 draws as four sides fired blanks.
Oxford City and Weymouth left frustrated, while Welling United and Eastbourne couldn’t be separated.
Dorking Wanderers won 1-0 against Chippenham. Matt Briggs' got the winner for Marc White’s team, who could even afford to miss a penalty.
There was a big Essex derby as Concord Rangers and Braintree Town faced off.
Aron Pollock had the last laugh, finding a late leveller for Concord - it ended 2-2 at the Aspect Arena.
National League South results:
Bath City 3-0 Hampton & RB
Concord Rangers 2-2 Braintree
Dorking W 1-0 Chippenham
Dulwich Hamlet 0-1 Maidstone United
Oxford City 0-0 Weymouth
Slough Town 2-0 Hemel Hempstead
St Albans City 2-3 Wealdstone
Tonbridge Angels 3-2 Dartford
Welling United 0-0 Eastbourne