Kingston Bagpuize lost five wickets for just two runs as they plummeted from 53-5 to 55 all out, resulting in a tie against Dinton 2nd.
Dave Pearce's 7-19 from 15.5 overs had left Dinton in disarray and when Kingston started an over from Kelvin Ripley with the scores level and four wickets in hand, victory seemed assured.
But Ripley took four wickets in the over without conceding a run to leave the match all square.
Ripley's figures were 4-11.
Kingston Bagpuize 15, Dinton 2nd 15.
Pete Burt smashed a six and two fours to take Cumnor 2nd from 92-9 to 113-9 and a tense one-wicket win over Witney Mills.
Mills had struggled to 109 all out against veteran Clive Ricks (4-24) and youngster Alan Cox (4-37).
Richard Tilley (5-47) and Steve Kelly (4-24) bowled throughout for Mills, but were unable to remove Burt, who finished on 39 not out.
Cumnor 2nd 25, Witney Mills 10.
Simon Smith took 6-26 to set up a seven-wicket success for Sandford St Martin at Bledlow Village.
The hosts were sitting pretty on 100-1 after being asked to bat first, but once Matt Bolton (51) and Adam Mould (38) had gone, then slumped to 136 all out.
Phil Paterson (49) top-scored as Sandford reached 138-3.
Bledlow Village 5, Sandford 25.
James Coleman's 6-61 included the vital final wicket as Cropredy saw off Hanborough by 21 runs.
Cropredy had posted 199-9 after being put in, Coleman top-scoring with 49 while Tim Coggins hit 40.
Craig Wood took 4-31 for Hanborough, who were always up with the required run rate but were finished 21 runs short at 178.
Hanborough 7, Cropredy 25.
Nitin Sehgal took 3-11 and hit 58 as Morris Motors Exiles squeezed past Wolverton Town by two wickets.
Michael Baker scored 76 as Town were bowled out for 173, Amin Rafiq taking 3-35. Ali Shah then hit 51 for the Exiles, who just edged past the victory target with eight wickets down.
Wolverton Town 11, Morris Motors Exiles 25.
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