Narborough duo Matthew Coe and Nathan King were in century-hitting form during a 156-run win against Hethersett & Tas Valley in Division Four.
Coe (116) and King (129no) starred with the bat before Matt Steeles (four for five) ran through the Tas batting.
Leaders Bungay suffered their first defeat of the season as they were beaten by 16 runs at Great Melton A.
In Division Three, Glen Meredith (four for 36) and Josh Lincoln (four for 44) shared eight wickets for Old Buckenham A against Acle A. But Shane Tovell (70) and Neil Grady (four for 35) ensured the 45-run win for Acle which keeps them top of the table.
Great Witchingham A were 13 runs short of victory with four balls remaining when they lost their final wicket to hand victory to hosts Garboldisham. Dan Taylor (four for 40) was the Garboldisham hero as he claimed the last wicket in the final over of the match. Anthony Goodrum (43) top scored for Witchingham.
Kevin Cooper (112) shared in a second-wicket stand of 96 with Tom Snelling (41) as Swardeston-CEYMS picked up a winning draw at Aldborough in Division Five. Stuart Bartram (four for 20) was the visitors' leading bowler.
In Division Six, Old Catton finished three runs short of the Bradfield A total with nine wickets down. Shaun Ames (64) top scored for Old Catton after Alex Robinson (54) and Sam Kimber (83) had made half-centuries for Bradfield.
Best of the rest
Division Three
Hardingham: Jason Scott 75
North Runcton A: John Lemon 89no
Sprowston A: Will Hampson 82, Ryan Pearce 58, Sam Niblett 4-37
Swaffham: Alex Payne 55, Matthew Smith 5-40
Division Four
Bungay: Tom York 69
Cromer A: Oliver Wells 58
Kirkley & Lowestoft Railway: Craig Guy 4-28, Marcus Bishop 4-63, Richard Daniels 55no, Jon Halstein 52
Mundford: Alex Bailey 4-32
Winterton: Josh Austin 61
Division Five
Garboldisham A: Jonny Leech 60no, Andrew Whistler 52no
Division Six
Beccles A: James McDowell 51no
Dereham A: Kristien Fletcher 68, Sam Widdows 51
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