Northampton arrested a slump in form with a deserved win over Leicester Tigers, while there were also victories for Wasps and Gloucester in the Aviva Premiership.
With three fixtures taking place on Friday, here's a round-up of the key action...
Northampton ended an 11-year wait for victory at Welford Road with a tenacious victory against Leicester in a fiercely competitive derby.
The struggling Saints, sitting third from bottom in the table, came into the encounter on a run of five straight defeats but completed the double over their rivals to stop the Tigers' five-match winning streak.
Ben Foden, Cobus Reinach and Ahsee Tuala went over the visitors, with Stephen Myler - playing in his last derby for the Saints - kicking 12 points. Leicester did pick up a losing bonus point with tries from Telusa Veainu and Matt Toomua.
Interim Saints boss Alan Dickens will next take his side to Twickenham Stoop as they look to build on their momentum while the Tigers will hope to return to winning ways at home against Newcastle.
Wasps recorded a dominant bonus-point victory against Worcester to stay well in contention for an end-of-season play-off spot, with stand-out performances from Christian Wade and Willie Le Roux.
Wade, who combined well with the South African full-back at Ricoh Arena, scored two tries while England international Joe Launchbury and replacement Josh Bassett added one each, while the visitors relied on two late efforts from replacement Dean Hammond and wing Josh Adams.
Danny Cipriani was forced to come off for a head injury assessment just before the break and even though the fly-half passed the assessment, Dai Young opted against calling the former England international back onto the pitch.
Wasps, who had Jack Willis and Jimmy Gopperth sent to the sin-bin in the second half, secured the bonus point when Bassett intercepted from near halfway and finished in assured fashion.
Young's side have a week's break before they host the Saints, with Worcester back in action against Harlequins on the same weekend.
Gloucester boosted their hopes of a Premiership play-off position with a bonus-point success against Harlequins at Kingsholm.
Callum Braley, Jason Woodward, Jake Polledri and Ruan Ackermann scored tries for the hosts - the final three in the last 10 minutes, with Billy Twelvetrees adding three penalties and four conversions to the points tally.
Gloucester nullified the Harlequins attack and the visitors, who have now suffered seven defeats from their past eight games, could only manage three penalties through Marcus Smith.
Johan Ackermann's side will next meet Bath in a derby at home, while Harlequins, under the soon-to-be-departed John Kingston, will host Wasps.