The Bulls extended their winning run to 13 games with a dominant eight-try romp against a disappointing Rhinos side, who trailed 38-6 after 50 minutes.
Powerhouse wingers Tevita Vaikona and Lesley Vainikolo (pictured) both scored two tries, while Danny Gartner, Paul Anderson, Robbie Paul and Karl Pratt also touched down.
Trys: Vaikona 2 Vainikolo 2 Gartner Anderson Paul Pratt
Goals: Deacon 8
Leeds:Trys Walker, Calderwood
Goals: Sinfield 4
Andy Farrell and Kevin Brown both ran in hat-tricks as Wigan Warriors defeated Halifax 58-12.
Wigan kept up their good form and a promise of things to come with a 58-12 romp to extend Halifax's run without a win to ten matches at The JJB Stadium.
Andy Farrell was magnificent with 30 points comprising a hat-trick of tries and nine goals, while youngster Kevin Brown also bagged a treble.
Jamie Ainscough, Paul Johnson, Terry Newton and David Hodgson also crossed, with Jaymes Chapman and Chris Birchall scoring late consolations.
Wigan-Trys: Hodgson, Newton, Johnson, Farrell 3, Brown 3, Ainscough