St Helens and Warrington Wolves both scored 50 points in respective wins over Catalans Dragons and Huddersfield Giants on Sunday.
Super League leaders St Helens scored 11 tries in a brutal thrashing off Hull FC, whose city rivals were also giving a hammering.
Regan Grace scored a hat-trick of tries as St Helens moved four points clear in Super League thanks to victory over rivals Wigan Warriors.
Konrad Hurrell scored four tries in a superb individual display on Thursday, yet he and Leeds Rhinos were beaten comfortably at Hull KR.
Leeds Rhinos threw away a 16-point advantage before sealing a 21-20 golden-point win over Castleford Tigers at Headingley.
Catalans Dragons were 12-0 and 16-6 down against Leeds Rhinos early on, but claimed victory as Fouad Yaha crossed on four occasions.
There were fine wins for Warrington Wolves and London Broncos in Super League, while Wakefield Trinity crushed Hull FC.
Huddersfield Giants claimed their first win of the season to add to Wigan's woes, while St Helens and Hull FC claimed emphatic victories.
Leeds Rhinos were linked with Tom Johnstone last year and the one-time reported target proved their undoing on Friday.
Alex Walmsley ran in two tries as St Helens scored 17 unanswered points in the second half to defeat Leeds Rhinos on Friday.