Bulls 46, Castleford 32
Shaun Ainscough's hat-trick helped the Bulls to victory as they climbed above Leeds and into the play-off places after surviving a nervy second half.
Mick Potter's men were in complete control at the break as they established a 34-16 interval lead following tries from Keith Lulia, Brett Kearney,
John Bateman, Olivier Elima and two from Ainscough.
Yet the Tigers scored three tries themselves through Jordan Thompson, Rangi Chase and Nathan Massey to signal their threat.
Castleford scored three more tries after the break through Rhys Williams (2) and Chase again but Kearney's second and Ainscough's hat-trick score put the Bulls home and dry.