Seisoni Tupou and Mike Lee scored two tries apiece as South West 1 leaders Oxford Harlequins roared to a 73-5 victory at Reading.
Quins crossed seven times in the first half and four after the break to go 17 points clear.
Flanker Tupou finshed a sweeping move for the visitors’ opening try on four minutes.
Fly half Zac Norris supported well to notch try No 2, converted by full back Will Hilton.
Wing Jack Robinson cut inside to score, with Hilton again converting, before captain Luke Brown dived over in the corner.
Hilton’s break set up a first try for centre Lee, who completed his double before the break.
In between, No 8 Jackson Achilles drove over, while Hilton converted all three.
Tupou powered over for his second on 49 minutes.
Props Simon Chadbone and Nick Marshall added further tries.
Wing Jordan Gomez replied with a consolation for Reading.
Quins centre Keni Fisilau completed the scoring, with Hilton kicking his ninth conversions and four out of four in the second half.
Witney made it four league wins out of four in 2014 after a 30-12 home success over Cheltenham.
The victory, which was sealed by two tries from wing Chris Beasley, took Witney up to seventh place.
Prop Jamie Burke drove over for the opening try on 11 minutes.
Cheltenham’s hooker was sin-binned before Witney scored again as lock Joe Rowles set up hooker Adam Copperwheat, who raced in.
The visitors’ pressure earned them a converted penalty try, with Witney flanker Stuart Catherall yellow-carded.
Witney took control in the second half, flanker Carl Campbell bagging as pushover try converted by fly half Ted Landray.
Landray made it 20-7 with a penalty, but Cheltenham wing William Scott replied with a try.
Beasley’s double, the first after a Copperwheat grubber kick, sealed Witney’s victory.
Grove’s match at Windsor was postponed due to waterlogging.