Only 167 runs were scored for the loss of 18 wickets before Banbury Twenty 2nd squeaked home by two wickets against Kimble in Division 4.
Mike Wedderburn (4-16) and Ali Shah (4-36) had combined to dismiss Kimble for just 82.
Sam Agace then took 4-30 to have Twenty in trouble before they scrambled the winning runs.
Banbury Twenty 2nd 25pts, Kimble 8
Buckingham Town 2nd and Stokenchurch were involved in a thrilling contest that finished in a draw with the scores level.
Mike Taylor hit 98 and Matt Thatcher 56 in Town's 248-5, with 36 runs coming from the final two overs.
Paul Maddock then hit an unbeaten 101 for the visitors, who finished on 248-7. Their failure to provide an umpire cost them five points.
Buckingham Town 2nd 14, Stokenchurch 3
Useful knocks of 47 by Charlie Brain and 43 from veteran Anthony Prior-Wandesforde set up Shipton-under-Wychwood 2nd's four-wicket win at Princes Risborough.
Earlier Risborough, who had elected to bat, were bowled out for 152, Samuel Jones taking 4-48.
Shipton-under-Wychwood 2nd 25, Princes Risborough 8
Ryan Gordon, 15, hit 59 for Challow & Childrey 2nd at Chearsley, but his side's 177 all out proved insufficient.
Marcus Hignell took 4-40 and Mark Claridge 4-20 for the home side, who lost seven wickets in reply, but managed to secure the win thanks to James Veness (60) and Neil Walters (49).
Chearsley 25, Challow & Childrey 2nd 10
Tanveer Nadeem's 82 not out for Twyford took them to 228-9, which proved too many for Oxford Downs 2nd.
Jack Deal (45) had also batted well after Downs won the toss and elected to field.
Ian Perna then took 3-41, but the home side played out for a draw in reaching 185-8. Twyford were deducted one point for their slow over rate.
Oxford Downs 2nd 10, Twyford 14
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