Relentless Belstone won once more, crushing struggling Sandridge Rovers 4-0 on Saturday in the Premier Division.
Danny Johnson, Danny Tilbury, Jason Ling and Darren Turner were all on target for the league leaders.
In second place, Bovingdon kept up the pace by winning 4-0 at home to Hertford Heath.
Goals from Lewis Pritchard (2), Lee Bircham and Ben Davis ensured Bovingdon are level on points with the leaders.
Sarratt remain in the title argument after easing to a 6-2 win against Lemsford.
Mark Shanahan scored a hat-trick, with Shaun Banham, Liam Wyatt and Marcus Sawyer also on target.
In Division One, Evergreen drew 1-1 with Buntingford Town; Hamze Ali scoring.
Old Parmiterians were beaten 1-0 at home by Knebworth.
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