Swindon put one hand on the title on Saturday as they swept Gosford All Blacks aside at Greenbridge Road.
One further win from the remaining two games will confirm Swindon as champions and mathematically it is almost impossible for them to be caught now as they boast a 300-plus points advantage over their nearest rivals.
From the kick-off, Swindon applied immediate pressure, youngster Danny Way put in the first big hit of the day and the Swindon forwards dominated from the first breakdown.
The home side kicked an early penalty to the corner and when the ball was fed out, stand-in captain and centre Paul Daniels bulldozed his way over the line.
Minutes later a similar infringement resulted in a kicked penalty from fly-half Neil Maycock.
Swindon continued to dominate, and a run from openside flanker Tom Loukes set up Matt Seyneave for the next try.
Maycock's conversion hit the top of the post but Swindon were not to rue the miss and from a five metre scrum, Jon Parker touched down, with the conversion making it 20-0.
Gosford scored their one and only try from a loose kick and that made it 20-7 at half-time.
Swindon started the second half with more discipline and a rejuvenated attacking display and when centre Stuart Cock was hauled down just short, scrum-half Connal Knott pounced to score.
Swindon's next score was a penalty try, but with Danny Webb in the sin-bin for foul play, the home side still held sway with 14 men.
A lineout take by Andy Morley set the platform for the next score, Scott Chapman with the touchdown, and Morley himself went over soon after.
The lock was involved again, as he profitted from a Maycock penalty tap to plunge over for his second try.
Swindon saved their best until last when, from the restart, Loukes found Maycock, who set off through the splintered Gosford ranks.
After exchanging passes with Knott, the fly-half drew the last defender and passed to wing Seyneave to score, and then set the seal on victory with another conversion.
Swindon are away to Drifters on Saturday before finishing their season at home to Wallingford on April 23.
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