Rob Knight struck a century as Charlbury pulled off a shock 64-run win against Great Horwood in Division 1.
The hosts’ opener Knight hit 114 as his side racked up 232-7.
The second-placed visitors were restricted to 168-9.
Charlbury 29pts, Great Horwood 5
Minster Lovell found Ayaz Khan too hot to handle in a 65-run home defeat by Cowley Internationals.
He finished with 9-42 as the hosts were all out for 147.
Brian Barrett had top-scored with 109 as the visitors posted 212-9 before Khan took over.
Minster Lovell 7, Cowley Internationals 30 Chadlington were skittled for 68 in an eight-wicket loss at Shrivenham in Division 2, Conor Taylor taking 7-33.
The hosts then strolled in at 70-2.
Shrivenham 30, Chadlington 1
Chipping Norton’s Mark Jarvis took 5-22 as they beat Tetsworth by four wickets.
Jarvis’s haul restricted Tetsworth to 120, before Mark Usher (45) and James McGe-own (36no) saw Chipping Norton reach 122-6.
Tetsworth 5, Chipping Norton 29
Stonesfield stay third after chasing down a decent score of 202-7 by East & West Hendred.
A partnership from Andrew Crawford (87) and George Redknap (63no) steered them in at 205-3 after they lost two early wickets.
East & West Hendred 6, Stonesfield 28
Combe’s Julian Chaundy (3-42) and Ethan Chapman (3-50) had Clifton Hampden struggling to 157.
Teammate Matthew Purssell then hit an unbeaten 74 to see his side over the line in an eight-wicket success.
Combe 30, Chadlington 4
Hosts Eynsham were blown away for 59 in Division 3 against Chesterton, Lee Price taking 4-9, before the visitors got home at 60-3.
Eynsham 1, Chesterton 28
Witney Swifts clung on to top spot after sneaking past Fringford.
Having set 143, Max Godwin (4-9) and Andy Purdie (3-34) bowled Fringford out for 128 to give Swifts a 15-run win.
Witney Swifts 27, Fringford 7
An unbeaten 126 from Omer Tariq was in vain as West Witney lost by eight wickets at home to Kilkenny in Division 5.
Tariq’s heroics saw them rack up 225-5.
However, Duncan MacDonald (86no), Chris May (45) and Jason Penn (55) steered Kilkenny in at 226-2.
West Witney 6, Kilkenny 27
Bampton kept the pressure at the top of Division 7 with a seven-wicket win away to Swinbrook 2nd.
Simon Launder’s 5-12 helped shoot out the latter for 77, before they passed the victory target in just 14 overs.
Swinbrook 2, Bampton 29
Hanborough 2nd inflicted a first defeat of the season on Cowley Internationals 2nd, in Division 8.
Idris Muhammed took 5-59, as Hanborough posted 199-9.
Cowley were then dismisssed for 146, Adrian Buck-ingham taking 4-50.
Hanborough 2nd 29, Cowley 2nd 7
Meanwhile, Stonesfield’s interest in the Airey Cup ended in a five-wicket defeat in the semi-finals against Cowley Internationals.
Stonesfield posted 160, before Masehullah Sadiqi (60no) guided Cowley home.