Leinster and Munster both emerged victorious in tight battles in South Africa, while Connacht downed the Dragons and Ulster won in Treviso against Benetton.
Elsewhere Glasgow Warriors beat the Ospreys while Edinburgh emerged victorious against the Scarlets and Cardiff Blues beat Zebre.
Here are our top five tries of the weekend
Nikola Matawalu’s first for Glasgow Warriors v Ospreys
The weekend began on Friday and Nikola Matawalu made history as only the third man in PRO14 history to come off the bench and score a hat-trick.
In truth, all three of his tries were showstoppers but his first one was as much about the set-up as the finish as DTH van der Merwe produced a stunning behind the back offload to release the Fijian in the left corner.
Nick Grigg for Glasgow Warriors v Ospreys
In the same game, Nick Grigg was nigh on unstoppable for the Scottish side.
The centre’s stunning break created Matawalu’s second before he got his own score in the second half.
The Scotland international finished off a fine set move from a scrum that sees van der Merwe released through the middle before young Stafford McDowall puts his midfield partner in the clear.
Colby Faing’a for Connacht v Dragons
Connacht’s third try was a thing of real beauty, from defence to attack in a matter of seconds.
David Horwitz, in his first start of the season, breaks from deep before releasing Tom Farrell and the centre then puts flanker Colby Fainga’a in the clear for an 80m team score that effectively put a seal on Connacht’s victory.
Rhyno Smith for Toyota Cheetahs v Munster
The Toyota Cheetahs fell agonisingly short against Munster in Bloemfontein but their fourth score was a thing of real beauty.
Tian Schoeman carried from inside his own half, shrugged off a tackle and offloaded to his half-back partner Shaun Venter. And when the No.9 hit Rhyno Smith in stride there was no stopping the full-back who sprinted clear for a try that put the South Africans in front.
Dries van Schalkwyk for Isuzu Southern Kings v Leinster
The Isuzu Southern Kings ultimately left their fightback attempt against champions Leinster too late.
But that does not stop them from making this list.
Their final score earned them a losing bonus point and it was Dries van Schalkywk who got it, the lock benefitting from a superb Kings counterattack from his own half from Masixole Banda before Godlen Masimla and Ruan Lerm put van Schalkwyk clear under the posts.