Louie McCarthy-Scarsbrook bagged two tries as Super League leaders St Helens secured a thumping 36-10 win over lowly Leeds Rhinos.
Leeds will continue to find trouble if they allow teams to make the sort of start that Saints enjoyed, powering 12-0 ahead in just three minutes after tries from Kevin Naiqama and McCarthy-Scarsbrook.
McCarthy-Scarsbrook scored again in the closing minutes on Friday, with Saints' other tries coming from Lachlan Coote - who also booted six goals - Tommy Makinson and James Bentley. Brad Dwyer and Luke Briscoe dotted down consolations for Leeds.
Second-placed Warrington Wolves remain six points behind the runaway pace-setters following a 30-6 win at home to Wakefield Trinity, which saw Josh Charnley mark his 200th Super League appearance with a try for Wire.
Ben Currie, Mike Cooper, Blake Austin and Jack Johnson also scored and Declan Patton kicked five goals, with Ryan Hampshire going over for Wakefield.
Wigan Warriors left hosts Huddersfield looking over their shoulders to the bottom three after winning 38-22 at the John Smith’s Stadium.
Giants are just two points ahead of Leeds and Hull KR, and sit level on points with London Broncos, after they were well beaten by Warriors.
From 18-12 at half-time, Wigan stretched their advantage to 38-12 before Huddersfield bagged consolation scores.
Wigan's tries in their third successive win came from Chris Hankinson - who added seven goals - Sean O'Loughlin, Liam Marshall, Joe Burgess, Thomas Leuluai and George Williams, with Sam Hewitt, Matt Frawley, Louis Senior and Jordan Turner scoring for Huddersfield.
Castleford’s struggles continued as they were beaten 26-16 at Salford. Niall Evalds, Lee Mossop and Jackson Hastings scored before the break for Salford, with Derrell Olpherts adding to Castleford's woes in the second half.
The Tigers' tries came from Daniel Smith, Greg Minikin and Jordan Rankin, and the team that began the Super League season with four straight wins now sit mired in mid-table.