Pat Harding scored twice to help send Burgess Hill top of Ryman south.
Rob O’Toole and Scott Kirkwood were also on target as the Hillians won 4-1 at South Park.
They now lead the table on goal difference.
Horsham remain in the bottom three after a goalless draw at home to Carshalton. Max Miller had their best chance.
Bognor claimed their first win of the season at the eighth attempt in Ryman premier. Goals from Harvey Whyte and Ollie Pearce earned a 2-1 victory at home to East Thurrock.
Three Bridges conceded twice in the first six minutes on their way to a 4-1 defeat against Tooting and Mitcham in their FA Cup preliminary round replay at Jubilee Field. Alan Tait got their consolation.
East Grinstead lost 2-1 after extra time away to Raynes Park Vale. Layton Schaaf’s 57th-minute equaliser ensured it ended 1-1 at 90 minutes.