Batley have beaten Dewsbury 28-18 in the Heavy Woollen Derby at Mount Pleasant.
Matt Diskin has claimed his first win as Bulldogs coach after replacing John Kear.
Dewsbury struck first, Toby Adamson crossing early.
After the break Dom Brambani was put over by Patch Walker. The Bulldogs then took the lead 16-12 from a try by Wayne Reittie.
Dewsbury finished the game off with a try from Donald Kudangirana.