Burgess Hill bounced back from defeat with a 2-0 win at Hailsham Town which moved them 11 points clear at the top of the table.
Ben Andrews opened the scoring when he headed home a Matt Geard free kick just before half time and Tim Marshall capped his first start of the season after a long-term ankle injury by scoring the second after the interval.
Four wins from their last nine games will guarantee Hillians the title.
Manager Danny Bloor said: "We have never lost two games on the spin since I have been manager. After our disappointment at Redhill we bounced back really well on a difficult surface.
"I made five or six changes to the side and the plus point was Marshall. To come back and play as well as he did shows he can be a major asset to us both for the rest of this season and in the future."
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