MATT Duncalf scored four tries as Bicester hammered Slough 79-6 at Oxford Road in the BB&O Premier Division.
Bicester took advantage of playing in the division’s only match to survive the wet weather to strengthen their grip on second place with a 13-try demolition.
Dan Spencer, Chris Harley and Steve Miler all bagged try doubles for the hosts, who have won their last five matches Rob Arthur, Jos Edwards and Philip Small also went over, with Spencer converting five and Mike Harris two.
Max Miles slotted two penalties for Slough.
Harwell were in even more ruthless mood, thrashing Winslow 88-7 at home in the BB&O Championship.
Rob Douglas and Sam Froud-Davis each scored hat-tricks of tries, with Gavin Wilde adding a brace.
Matt Rushden, Mike Phillips, James Hoskyns-Jones, Tom Nicholas, Lewis Richards and Jordan Morrison completed the tally, with Andy Lee slotting nine conversions.
Leaders Abingdon cruised to a 48-7 victory at Faringdon, with Callum Percival crossing for a try treble.
Seb Bach, Gareth Smith, James Webb, Aaron Lewis and Luke Matthews also got on the scoresheet, while Mark Roberts converted four.
Second-placed Wheatley won 70-0 at Kingsclere.