Marcus Smith kicked three penalties in the second half as Harlequins managed to edge out Gloucester Rugby in their Gallagher Premiership clash at Kingsholm on Saturday.
Bristol Rugby secured their second home game of the season as they went on to beat Harlequins 20-13 in their Gallagher Premiership encounter at Ashton Gate on Saturday.
Bath went on to register their maiden win in the ongoing season of Gallagher Premiership after they resisted a late fight from Harlequins to complete a 32-37 victory at Twickenham Stoop on Saturday.
Dan Biggar contributed 17 points on his home debut for Northampton Saints as they completed a 25-18 win over Harlequins in the second round of the Gallagher Premiership at Franklin's Gardens on Friday.
Marcus Smith impressed with 26 points as Harlequins completed a 51-23 bonus point victory over Sale Sharks in the opening game of the 2018/19 Gallagher Premiership season opener at Twickenham Stoop on Saturday.
Wasps, Newcastle Falcons, Exeter Chiefs and Harlequins managed to remain unbeaten as they topped their respective pools in the opening day of the Premiership Rugby 7s at Franklin's Gardens on Friday.
Harlequins have confirmed that former England international Nick Easter will leave his role as defence coach of the club with immediate effect due to "personal reasons".