Gorleston continued their impressive start to the Premier Division season by beating Walsham-le-Willows 2-0.
Ricci Butler's side made it three wins from four league outings thanks to a Connor Ingram brace.
The striker netted in both halves to wrap up a home win which would have been more convincing had he not missed a penalty.
Robbie Priddle's strike saw Thetford Town take a 1-0 lead into the break at Newmarket Town.
Jack Watson equalised midway through the second period and it looked like the visitors had done enough to earn a point until Jamie Thurlbourne – a former team-mate of Thetford boss Danny White at King's Lynn Town – netted a stunning winner at the death.
In the First Division King's Lynn Town beat Downham Town 2-1. Matty Bussens put the visitors ahead but goals from Jack Frohawk and Lewis Curson ensured Lynn claimed derby bragging rights.
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