Dave Taylor smashed 100 off just 41 balls as Kidlington thumped Hanborough by 73 runs to reach the quarter-finals of the Bernard Tollett Oxfordshire Cup.
Noel Pearson chipped in with 50 off 48 balls in Kidlington's 185-5, while Faisal Chaudhry's 5-17 ensured Hanborough made only 112-7 in reply.
A century partnership between Benji Hector (55no) and Simon Hole (45no) propelled holders Banbury past Great & Little Tew by nine wickets.
Despite a bright start, Tew were all out for 105 in the 20th over.
Craig Haupt took 3-2 for Banbury, who then cruised home in the 13th over.
Oxford are also through to the last eight after a 43-run victory over Cumnor.
Adam Cook made 46 in Oxford's 117-8 with spinner Umair Ghazali taking 4-18.
But Francois Vainker (4-16) and Jack Brooks (3-8) skittled Cumnor for 74.
Tiddington caused an upset in defeating neighbours Thame by three runs.
Thame closed on 117-8, chasing Tiddington's 120-9.
Bicester & North Oxford beat Marsh Gibbon by 95 runs, Andrew House hitting 44 and Stafford Sansome 38 in their 160-7.
Abingdon Vale raced to a nine-wicket victory over Witney Mills.
Pete Claridge top-scored with 37 in Mills' 105-7, but Dan King (45no) and Matthew Chown (35) took Vale to 107-1 in 14 overs.
Dickon Morris made 37 not out as Shipton-under-Wychwood defeated Horspath by eight wickets.
Ned Murray hit 35 in Horspath's 95-9, in which Omar Hussain claimed 2-15, but Shipton eased to 96-2.
Henley were handed a walkover by Oxford & Bletchingdon Nondescripts, who were unable to raise a side.
RESULTS
Kidlington 185-5 (D Taylor 100, N Pearson 50), Long Hanborough 112-7 (Faisal Chaudhry 5-17).
Great & Little Tew 105 (C Haupt 3-2), Banbury 106-1 (B Hector 55no, S Hole 45).
Oxford 117-8 (A Cook 46, Umair Ghazali 4-18), Cumnor 74 (F Vainker 4-16, J Brooks 3-8).
Tiddington 120-9, Thame 117-8.
Bicester & North Oxford 160-7 (A House 44, S Sansome 38), Marsh Gibbon 65-8.
Witney Mills 105-7 (P Claridge 37), Abingdon Vale 107-1 (D King 45no, M Chown 35).
Horspath 95-9 (N Murray 35), Shipton-under-Wychwood 96-2 (D Morris 37no).
Henley w/o Oxford & Bletchingdon Nondescripts.
QUARTER-FINAL DRAW
Banbury v Bicester & North Oxford, Henley v Toddington, Kidlington v Abingdon Vale, Shipton v Oxford.
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