Aussie paceman Anthony Smith was too hot for Long Marston as Great & Little Tew maintained their unbeaten record and cemented their place at the top of Division 2.
Marston were rolled over for only 72 as Smith (5-30) and Lloyd Brock (3-6) ran riot.
Tew made hard work of their reply, but Ed Gross hit 37 and they eventually made their way to 73-4.
Gt & L Tew 25pts, Long Marston 4
Challow & Childrey stayed on course to join Tew in Division 1 next season by thrashing Abingdon Vale at Hales Meadow.
Olly Dimbylow took 6-36 and David Slade 3-19 as Vale were bundled out for just 90. Only all-rounder Ed Tilley (38) put up much of a fight.
Nick Meadows then smashed 44 not out as the visitors raced to 91-1.
Abingdon Vale 1, Challow 25
Hanborough's inevitable relegation was virtually confirmed when they crashed to an eight-wicket defeat at Tiddington, who all but guaranteed their own safety in the process.
Sam Hollingshead proved to be unplayable, taking 5-41 from 19 overs as Hanborough were rolled over for 95 in 48.3 overs.
The loss of a couple of early wickets only delayed the home side's victory, as Will Goodman (39no) and Ali Habib (34no) finished the job in just 18.2 overs.
Tiddington 25, Hanborough 2
Banbury 2nd recovered from 60-4 thanks to Chris Board (69no) and Jamil Faruq, who smashed 68 off 56 balls, hitting five sixes and five fours.
His fast scoring meant Banbury were happy to declare on 237-6 after 50 overs, and victory looked likely when Sandford St Martin were reduced to 95-4.
But Brendon Ham (85no) and Mark Robey (40no) then added 106 to secure a draw with the score on 201-4.
Sandford St M 9, Banbury 2nd 12
Ryan Newhook took 5-55 and Joseph Jenkins 5-25 as Bourton Vale ran through Oxford & Bletchingdon Nondescripts for 117 to stay in the promotion picture.
Only Dave Leadbitter (32) gave the score a modicum of respectability.
Jaimie Noble then hit 36 for Vale, who had little trouble reaching 118-3.
Nondies 4, Bourton Vale 25
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