The Heavy Woollen Derby refers to the rivalry between Batley Bulldogs and Dewsbury Rams, both located in the Heavy Woollen district of West Yorkshire.

The two sides compete an annual friendly on Boxing Day to celebrate their rivalry.

The Boxing Day Challenge is an annual Rugby league friendly match that takes place on 26 December in which the teams compete for the Roy Powell Trophy.

[3][4] The trophy is named in honour of Roy Powell who died on 27 December 1998.

Powell was born in Dewsbury, and in 1998 had been part of the Batley team that won the Trans-Pennine Cup.