Jackson Hastings inspired Wigan Warriors to a victory over Huddersfield Giants that crowned his side as League Leaders' Shield winners.
Catalans Dragons saw a 12-point lead evaporate in the second half against Salford Red Devils, with Krisnan Inu scoring 26 points.
It remains to be seen when Castleford Tigers will be in action again after four more players tested positive for COVID-19.
A second Super League game on Friday has been cancelled as Salford Red Devils have "player availability issues".
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.