Stephen Donald got his name on the try-scorers sheet as Bath shook off their mid-winter blues with a 46-14 win over Northampton that puts them in pole position for a home semi-final in the LV= Cup.
Northampton, missing 10 players to England and the second-string Saxons, were well in touch until the last quarter but were then blitzed by three tries in seven minutes from Donald, Olly Woodburn and Charlie Beech.
Earlier tries had been scored by Ross Batty and Anthony Perenise - a spectacular sprint by the Samoan prop from nearly 40 metres, while Olly Barkley kicked 21 points.
Saints' points came from a try by prop Alex Waller and three Stephen Myler penalties.
Leicester kept their hopes of a semi-final berth alive as Ben Pienaar's second-half try secured a 19-9 win over Premiership leaders Harlequins.
In a tight first half, Andy Forsyth's converted try gave the Tigers a 7-3 lead at the interval, with Rory Clegg kicking Quins' points from a penalty.
Although Clegg landed two further penalties, tries from 20-year-old winger Alex Lewington and Pienaar pulled Leicester clear to inflict Quins' fourth defeat from the last six games.
Gloucester claimed a convincing 40-3 win over Cardiff at Kingsholm.
Gloucester had a stronger side with Henry Trinder, James Simpson-Daniel and a number of experienced forwards in their starting line-up and they dominated.
Two splendid tries from star man Simpson-Daniel and 15 points from the boot of young Ryan Mills ensured a comfortable victory for the home side.
Tim Molenaar, Andy Hazell and Peter Buxton were the other men to bag tries for Gloucester.
Wasps' disastrous season continued to nosedive as Exeter captain Gareth Steenson kicked 15 points to keep his side's hopes of reaching the semi-finals alive with a 30-16 victory.
Playing against an out-of-form Wasps side, who were effectively out of the competition even before kick-off, the Chiefs were dominant at the scrum and showed more of a cutting edge in attack.
Exeter were also excellent in defence to restrict Wasps to just one try through Mike Powell thanks largely to some ferocious tackling throughout as they stayed in touch with Northampton in Pool Four.
Dave Ewers, Myles Dorrian and Ally Muldowney were the players with the tries for the away side.
On Friday night, the Ospreys all but ended the Newport Gwent Dragons' slim hopes of progressing with a four-try 26-21 victory over their Welsh rivals at the Brewery Field.
The Ospreys had lost the last three meetings between the sides but tries courtesy of Ross Jones, Hanno Dirksen, Eli Walker and South African centre Stefan Watermeyer gave them their first win in this season's Anglo-Welsh competition, with first five-eighth Matthew Morgan kicking three conversions.
The Dragons had been level at 14-all at the interval thanks to a try from wing Pat Leach and three penalties from Steffan Jones, but replacement Luke Williams' last-gasp try was their only score of the second half.