Featherstone Rovers moved up to a 90-per-cent win percentage with a 48-28 win over London Broncos at Trailfinders Sports Club.
A hat-trick from Connor Jones, two tries from Gareth Gale and other efforts from Callum Field, Alex Walker, Tom Holmes and Frankie Halton earned another big win for the Rovers.
London responded with four tries from the in-form Gideon Boafo, and another from Josh Hodson, but must beat York City Knights next week to confirm their playoff place.
Elsewhere, Whitehaven kept their playoff hopes alive with a 19-6 victory over Halifax Panthers at the LEL Arena.
Tries from Lachlan Walmsley, Jason Mossop and Ryan King, as well as a drop-goal from Gregg McNally, completed the win for Whitehaven, who could still get in the playoffs. They need to beat Bradford Bulls next week, and hope London lose against York.
Halifax briefly got themselves back in it through Scott Grix, but have fell to a third defeat in four matches.
Newcastle Thunder also moved up to 10th in the table, with a 38-24 win over already-relegated Oldham at Bower Fold.
Two tries from Alex Donaghy, and other efforts from Josh Woods, Ukuma Ta’ai, Connor Bailey, Kieran Gill and Isaac Nokes earned the impressive victory for Thunder.
Oldham made a game of it thanks to two tries from Max Roberts, and other efforts from Lewis Charnock, Dan Abram and Tyler Dupree, but ultimately fell to defeat.
Dewsbury Rams also made it back-to-back wins after a 31-24 win over Heavy Woollen rivals Batley Bulldogs at the Fox’s Biscuits Stadium.
Tries from Adam Ryder, Liam Finn, Andy Gabriel, Tom Garratt and Jordan Schofield, as well as a drop-goal from Paul Sykes earned the win for the Rams.
Batley responded with tries from Ben White, George Senior, Kieran Buchanan and Jodie Broughton, but suffer a second straight defeat.
Finally, Swinton Lions claimed their second win of the season after a 34-28 win over Sheffield Eagles at the Keepmoat Stadium.
Tries from Luis Roberts, Nick Gregson, Reece Hamlett, Mitch Cox, Geronimo Doyle and Lewis Hatton gave Allan Coleman his second win since taking charge.
Sheffield kept themselves in the game with two tries from Joel Farrell, and other efforts from Tyler Dickinson, Rob Worrincy and Olly Butterworth, but they have fallen to 12th after a fourth straight defeat.