Both they and nearest rivals Ipswich Wanderers secured 3-1 home victories, with
George Diggens scoring twice in Thetford's win over Walsham and Cameron King netting the other goal for Matt Morton's side. Meanwhile at Humber Doucy Lane, Joel Glover gave Wanderers an early lead. Matt Hayden equalised for Newmarket only for Wanderers to restore their lead from the kick-off with an uncontested goal due to the circumstances of the Jockeys' strike. A second half own goal made the game safe.
Woodbridge stay third following a 5-2 win against visitors Fakenham. The Peckers' goals were spread around with Evan Bolt, Callum Sinclair, Rhys Barber, Mark Ray and Luke Mallett all on the mark.
Hadleigh returned to winning ways with a 2-0 win over Ely. Louis Bloom and Harry Brown netted for Steve Holder's outfit as they are now fourth.
Mildenhall remain on the same number of points as Hadleigh after a narrow 1-0 win at Harleston. George Bugg netted the only goal of the game though 'Hall were indebted to keeper Frank Gammon saving a penalty from Rob Turner who netted two spot-kicks against 'Hall in last week's 2-2 draw.
Lakenheath secured a 1-1 draw at Mulbarton while Brantham went down 1-0 at home to Sheringham.
Long Melford defeated Soham 1-0 despite playing most of the second half with 10 men after the sending off of Josh Collins. Hassan Ally notched the only goal of the game at Stoneylands on the hour.
It looks a foregone conclusion that Haverhill Rovers and Whitton will occupy the bottom two. Rovers went down 3-0 at Norwich United while Whitton lost 2-1 at Kirkley and Pakefield. Kaiden Goldspink and Cam Russell were on target for the Royals in a game which saw a player from each side sent off.