Seaham Park added five points to their Division Two lead over Burnopfield, and they now head their rivals by 18 going into next weekend’s head to head.
It was all too easy for the Park as a damp pitch handed Alex Ludlow and Siddharth Chitnis just the bowling conditions they needed at Murton.
Chitnis claimed 4-10 in nine overs, while Ludlow bagged six for 30 in his 10-over burst, the home side crashing to 46 all out.
Chris Winn (3-16) did his best to reclaim some kudos for Murton, but John Sample’s 22-ball unbeaten 30 ensured there were no more alarms.
Former Durham star Gareth Breese was the key man for Burnopfield who were made to battle for their win by visitors Langley Park.
Breese made a top-scoring 63 as his side laboured to 142-9 in 48 overs, and then he picked up 4-23 as Langley fell 30 runs short.
Marsden still stand an outside chance of challenging the top two following a 60-run victory over Peterlee.
James Sneller cracked six fours and three sixes in his top-scoring 63 as Marsden posted 178-6, and then skipper Chris Mann dismantled the home team in a 8.2-over spell in which he picked up six wickets for 13 runs.
It was the Mickey and Dylan show at Ryhope where Littletown were beaten by 56 runs.
South African Dylan Buckthorp cracked seven fours and five sixes on his way to a 79-ball 87 which boosted the home team to a declaration after 44.5 overs on 235-5. Scott Lawrence added 35 and Tomlin 29no, with Shashikant Kadam taking 2-21 in 12 overs.
Mickey Thorpe then bagged 6-42 in 7.3 action-packed overs as the visitors slid to 179 all out, with Brad Davis (39), Bryan Conlon (37) and Carl Purvis (26) top-scoring. Josh Dick struck twice.
Houghton were thumped by Ushaw Moor, who posted 202-1 declared, with Lewis Cook firing an unbeaten 10-8 and Matt Dyke making 83. Stephen Hancock plundered 6-14 as Houghton were skittled for 45.