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Former Gillingham midfielder Charlie Allen scored twice as Margate won 4-1 at East Thurrock on Tuesday night.
He gave Blues a half-time lead against the Ryman League Premier Division strugglers and added the fourth following two goals in three minutes from Mitchell Nelson and Anthony Riviere just after the break.
A penalty from Tom Stephen on 61 minutes denied Nikki Bull a clean sheet.
Folkestone moved three points clear of Guernsey in third place in Ryman League Division 1 South after a 3-0 win at Walton & Hersham.
A penalty from James Everitt put Invicta in front and he completed the victory after Dane Luchford had doubled the lead on the stroke of half-time.
Louis Sprosen scored a last-minute winner for Hythe in a 3-2 home victory over Merstham.
Shaun Welford twice gave Town the lead but goals from Tommy Hutchings and Taurean Roberts looked set to deny them until Sprosen's late strike.
Sittingbourne made it three wins in four games against top sides with a 2-1 success against play-off hopefuls Hastings United.
Ryan Golding and George Crimmen struck late in the first half to put Brickies in charge and they held on after Frankie Sawyer pulled a goal back.
Laurence Harvey gave Whitstable the lead at Walton Casuals but two goals in three minutes from Simon Huckle and Malachi Hudson turned the game Casuals' way and they added a third through Gabriel Odunaike.
VCD Athletic's lead at the top of Ryman League Division 1 North is down to two points after a 2-0 home defeat by Soham.
Antonio Murray put the visitors in front on the hour, with Luke Stanley's late second making sure.
In-form Chatham were 3-0 winners over struggling Ware thanks to two goals from Austin Gacheru, including an early opener, and a Kieran McCann strike.