Thame Town 2nd collapsed from 32 without loss to 38-6 and never really recovered as they suffered a 92-run reverse at home to Horspath 2nd in Division 6.
Stephen Green (52) and David Heritage (40) had provided the backbone to Horspath's 201-5. Tom Smith (3-21) then helped bowl out Thame for 109.
Thame Tn 2nd 3pts, Horspath 2nd 25
Simon Pritchard hit a match-winning 72 as Didcot won by four wickets at Bourton Vale 2nd to overtake Thame at the top.
Earlier Julian Hitchman had taken 4-104 and Steven Stroud struck an unbeaten 52 in Vale's 214 all out.
Bourton Vale 2nd 10, Didcot 25
Tiddington 2nd must have been delighted at being inserted by Long Marston 2nd as they racked up 293-7.
Phil Manning (76), Nick Edmondson (73) and Alan Maule (55no) did the damage.
Mohsin Habib (6-26) then enjoyed bowling at the tired Marston batsmen, who were all out for 131, despite John Roberts's 60.
L Marston 2nd 5, Tiddington 2nd 25
Sandford St Martin 2nd claimed their first win of the season at the expense of Oxford 4th, who were bowled out for 131.
Tom Swarbrick (46) and Musaleen Sadiqi (37) were the only home batsmen to make scores of note, before Sandford eased home for the loss of four wickets.
Oxford 4th 6, Sandford St M 2nd 25
Keith Cartwright took 4-22 and Jamie Fowler 3-37 as Brackley dismissed Wolverton Town 2nd for 133.
James Timmis (48) then held together the visitors' reply, which ended on 137-7 despite a few alarms engineered by James Bell (3-29).
Wolverton Town 2nd 9, Brackley 25
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules hereComments are closed on this article