Salford Red Devils and Leeds Rhinos clinched victories in Monday's Super League action as St Helens and Castleford Tigers were beaten.
St Helens and Wigan Warriors were big winners in Friday's Super League action as Leeds Rhinos and Salford Red Devils felt their force.
Luke Gale struck with a drop-goal just four minutes from time to seal a narrow win over Salford Red Devils at Wembley.
Following two inconclusive test results each for Hull KR and Salford Red Devils, their game on Tuesday was delayed by an hour.
There were two hat-tricks at Headingley as Leeds and Salford followed up Challenge Cup semi-finals wins with Super League victories.
Leeds Rhinos hammered Hull KR but Harry Newman suffered a season-ending injury, while there were wins for Huddersfield Giants and Salford.
Leeds Rhinos had to stand down seven players due to COVID-19 concerns on Friday but still came up with a win against Huddersfield Giants.
Greg Minikin scored a hat-trick as Hull KR stunned Super League leaders Wigan Warriors at Headingley.
Two Wakefield Trinity players returned positive coronavirus tests, forcing the game with Leeds Rhinos to be called off.
Wigan Warriors recovered from a poor start to beat Castleford Tigers, while two Leeds players scored hat-tricks in a rout of Salford.