Winger Adam Walsh ran in four tries as Banbury defeated Northampton Mens Own 37-19 in Midlands 3 East South.
Walsh was the main beneficiary in a seven-try romp that saw David Taylor (2) and prop Andy Gilbert also cross over.
Fly half Tony Hurst added the sole conversion as Banbury kept in touch with the leaders.
Harwell surrendered a 12-5 lead to lose 32-12 at Oxford Harlequins 3rd in BB&O 1 South.
Lee Lewis and Simon Ritson scored tries, Lewis converting.
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 The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.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