Flanker Dale Cross’s late try earned Abingdon a 12-7 victory at Didcot in their BB&O Championship derby on Saturday.
Abingdon hooker Lee Taylor forced his way over for the opening try after a great break from captain and scrum half Ollie Young.
Fly half Mark Roberts’s conversion gave Abingdon a 7-0 half-time lead.
Didcot thought they had earned a draw thanks to a try from former Abingdon No 8 Ronnie Booth, converted by Paul Costello.
But Cross sneaked over in the corner with four minutes left after a good passing move.
Chipping Norton earned a 20-17 victory at Gosford All Blacks in the BB&O Premier Division.
Gosford prop Callum Thompson was bundled over for the opening try, Tim Ellis converting.
Scrum half Matty Taylor replied with a try converted by Barry Nutt and No 8 Matt Dawson’s score put Chippy 12-7 ahead.
Gosford’s Tommy Newell sprinted in for their second before he and Taylor were sin-binned.
George Wilkinson’s try and Nutt’s penalty made it 20-12 before Harry Sutton’s score earned Gosford a losing bonus point.
A well-drilled Harwell side defeated visiting Bicester 39-12.
Two tries apiece from full back Jack Robinson and centre James Cantwell, plus a Robinson conversion, put Harwell 22-0 ahead at half-time.
Bicester improved after the break, with No 8 Dan Spencer’s try converted by Tom Bass.
Flanker Niall Morrow also notched for Bicester, but Cantwell completed his hat-trick and Sam Froud Davis also went over.
Robinson added two conversions and a penalty.
Berks, Bucks & Oxon 1: Marlow 2nd 15, Witney 2nd 21 (tries J Ellwood, R Mills; con L Manning; pens Manning 3).
Berks, Bucks & Oxon 3 North: Bicester 3rd 17 (tries C Nash, W Hammond, M Hutchinson; con S John), Gosford All Blacks 2nd 15.
Berks, Bucks & Oxon 4: Oxford Harlequins 3rd 25 (tries G Wilson 3, J Henderson; cons D Todd; pen Todd), Reading 4th 12.