Rhinos halt Bulls, Dragons tamed
Leeds claimed a derby win over Bradford, St Helens won away to Catalan, while Widnes stunned Salford in Friday night's Super League action.
On-loan hooker Shaun Lunt scored the 100th try of his career as in-form Leeds secured a sixth successive win to keep their double dream alive after seeing off neighbours Bradford 34-16.
The Rhinos needed to be at their best to see off a spirited Bradford side that contributed fully to a thoroughly entertaining derby in front of an 18,520 crowd at Headingley.
It was the Bulls' first defeat since going into administration as they missed the chance to take over fifth spot in Stobart Super League from their hosts.
The attendance was swelled by around 3,500 Bulls fans encouraged by Leeds decision to hand back all the proceeds of away-ticket sales to help the bid to keep the Bradford club from liquidation.
Elliott Whitehead gave the Bulls an early lead but it was 6-6 at the break as Kallum Watkins went over.
Leeds dominated the second period with Watkins, Lunt, Zak Hardaker, Danny McGuire and Kevin Sinfield try scorers.
Olivier Elima and Karl Pryce crossed for the Bulls late on.
St Helens climbed above Catalan Dragons in the Super League table with a hard fought 20-15 victory in the South of France.
Saints twice came from behind and survived the sending off of Tony Puletua six minutes from time to earn their win.
Tommy Makinson scored what was to prove the decisive try but the Saints lived dangerously, with Damien Cardace, Sebastien Raguin and Cardace again seeing efforts ruled out by the officials.
Salford's hopes of a top-eight finish suffered a massive setback as Widnes ran in eight tries in an emphatic 46-8 win.
Scrum-half Rhys Hanbury was the star of the show with two tries and seven goals, while Patrick Ah Van and Cameron Phelps also bagged two tries each for the rampant Vikings.
Paul McShane and Danny Craven also crossed for the visitors who were 24-0 ahead at the break.
Salford managed tries from Ashley Gibson and Danny Williams, but never looked like mounting a comeback.