Owen Williams put in a commanding performance as Leicester Tigers defeated Northampton Saints 27-20 on Saturday.
Leicester Tigers showed their intent when Owen Williams kicked an early penalty to the corner but Will Evans was held short following the lineout. Luke Hamilton was next to go for the line following a scrum five metres from the line.
When front row Harry Thacker was held short, Hamilton picked and dove over for the opening try, 20 minutes in. Owen Williams converted but Saints hit back immediately when centre Harry Mallinder crossed after the restart while Sam Olver missed with the conversion.
Saints were dealt a blow when Ken Pisi saw yellow for a tackle on Jack Roberts. Williams kicked the resulting penalty but Olver cancelled it out with a kick three minutes later near halfway. Tigers were 17-8 ahead at the break when Dom Barrow went over, with Williams converting but were a man down when Michele Rizzo saw yellow.
Leicester added a third try through Thacker but Saints hit back with 12 minutes remaining through Nafi Tuitavake. An Owen Williams penalty pushed the lead out to 27-15 before Rory Hutchinson scored a late try for Northampton.
Harlequins fought to a 28-22 victory over Worcester Warriors, recovering from an early 14-0 deficit at Sixways to seal a semi-final birth.
Worcester took an early lead after Wynand Olivier touched down five minutes in and doubled their lead when Bruce Heem went over. Harlequins were in danger of capitulating, but turned the ball over following a five metre attacking lineout for the Warriors. Three minutes later Charlie Walker danced through the Warriors defence to score from 35 metres to score under the posts to trail 14-7 at the break.
A Harlequins win would have given them a chance to qualify for the quarter-finals but it looked some way off after Joe Taufete'e went over off the back of a maul. But an intercept from Charlie Matthews on halfway put Quins back in the hunt for qualification.
When Ruaridh Jackson converted Alofa Alofa's try before the half-hour they led by two but Worcester fought back to lead when Ryan Mills converted a penalty in front of the posts. Alofa completed a remarkable fightback with nine minutes remaining when he managed to cross, with Jackson converting. Worcester saw replacement Darren Barry sin-binned for tackling Stan South in the air as Quins sealed victory. With Wasps, Bristol and Cardiff all losing, it saw Harlequins top Pool 3 and qualify for the Anglo-Welsh Cup semi-final.
Michele Campagnaro ran in a hat-trick as Exeter Chiefs ran in eight tries in a 52-5 win over Wasps 52-5.
It took just three minutes for Campagnaro to score the opening try, with Mitch Lees adding a second before the 10th minute. Joe Simmonds converted both before Will Rowlands struck back with a try for Wasps. But that was as good as it got for Wasps who trailed 33-5 at the break.
Campagnaro added his second, while Sam Simmonds and Stuart Townsend also added tries. Exeter's dominance continued after the break with Lees getting his second five minutes in and Campagnaro completing his hat-trick 10 minutes later. Lachie Turner added an eighth try to complete the rout.
Dafydd Howells' try a minute into the game helped Ospreys to a 20-14 victory over Bristol. Luke Price converted the opening score and should have added a second try shortly after but the referee adjudged that they were held up.
Price stretched their lead after he added a penalty 11 minutes in but Bristol responded through Max Crumpton, as he touched down to narrow the gap to three 20 minutes in. A brilliant joint-defensive effort from Rhys Webb and Ben John prevented another Bristol try to lead 10-7 at the break. Ospreys were dealt a blow when Ben John saw yellow after the restart but Bristol could not take advantage.
Price kicked a penalty on the hour to push the lead out to 13-7 but there was late drama. Marc Jones muscled his way over after Thretton Palamo was held short. But Ospreys weren't done and with two minutes remaining Sam Underhill crossed to seal victory.
Ex-Wales playmaker James Hook converted a 78th-minute try by replacement scrum-half Ben Vellacott to snatch a draw for Gloucester and deny Bath their first win in this season's Anglo-Welsh Cup.
The home side thought they had clinched victory just a few minutes earlier when Aled Brew went over in the corner but Rhys Priestland's missed conversion left the door open. The fly-half had kicked four penalties.
Bath had needed highly improbable mathematics to stay in the competition, anyway, and Gloucester also needed other results to go their way to reach the quarterfinals.
Laurence Pearce touched down twice as Sale Sharks moved to the top of Pool 2 following a dominant 41-3 triumph over an inexperienced Cardiff Blues side.
Denny Solomona and Jonathan Mills tries gave the Sharks a 14-0 lead before the Welsh region got on the board via Jarrod Evans' penalty.
Another score, this time from Pearce, opened that advantage at the interval before the number eight added a second after the break.
Neil Briggs and James Flynn also went over for Sale, while they were also awarded a penalty try as they handed the Blues their third successive defeat in the competition.
Elsewhere, Saracens had to see off a second half revival from a young Scarlets side before sealing a bonus victory in their Anglo-Welsh Cup clash at Parc y Scarlets.
Saracens were indebted to tries from centre Nick Tomkins, fullback Matt Gallagher, wing Mike Ellery and replacement fly-half Tom Whiteley, with Max Malins and Whiteley supplying 12 points with the boot.
The home side's tries in the 32-17 defeat came from number eight Morgan Allen and replacement fly-half Billy McBryde.
Newcastle grabbed their first Anglo-Welsh Cup victory, 18-6, at an almost flooded Rodney Parade in Newport, with the two captains agreeing to abandon the match on 69 minutes due to a waterlogged pitch.
Number eight Mark Wilson and wing Belisario Agulla scored Falcons' tries, with scrum-half Sonatane Takulua converting the first and scoring two penalties either side of half-time, against two penalties from Dragons wing Tom Prydie.
Referee John Meredith and both captains agreed to give the game a go despite the pitch having turned into a mudbath. But, with pools of water on the pitch, the ref called the two captains together on 69 minutes and all parties agreed to abandon the match.