Paul Edwards smashed 139 for Abingdon Vale 2nd - but ended up on the losing side in Division 6.
Vale reached 216-6 at Milton Keynes Park 2nd, which proved insufficient as Kenny Hollis (95no) and Jude Ramanadanpulle (58no) took Park to an eight-wicket win.
MK Park 2nd 30pts, Abingdon Vale 2nd 11.
Vale stay in second behind Great & Little Tew 2nd, who also endured a frustrating afternoon.
Put into bat by winless Sandford St Martin 2nd, Tew declared on 244-6 thanks to Dave Freeman (67) and Andy Darby (41).
Ed Gross then took 4-53 as Sandford settled for a draw on 192-8.
Great & Little Tew 2nd 18, Sand'ford St Martin 2nd 14.
The failure of the top two to win saw Wallingford close the gap by beating Kidlington 2nd. Andy Oliver (88) starred in Kidlington's 161-9, in which Trevor Spindler took 5-77 and Warren Ainsworth 4-56.
Lee Ainsworth (47) and Mark Bowman (43no) then helped the visitors to an eight-wicket win.
Kidlington 2nd 9, Wallingford 30.
Horspath 2nd are in the mix after a five-wicket win at Bledlow Ridge 2nd. Tom Smith (5-39) and Stuart Berry (4-18) combined to dismiss Ridge for 150, then Joe Todd hit 63 not out as Horspath won comfortably despite Mark Dakin's 4-50.
Bledlow Ridge 2nd 11, Horspath 2nd 30.
Will Goodman hit 74 in Tiddington 2nd's 180-8 at home to Wolverton 2nd. Sameer Rehman took 5-58 for Town, who then eased to 181-4 thanks in the main to Kabir Arif's 61.
Tiddington 2nd 12, Wolverton 2nd 30
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