The NRL has long been one of my favourite winter sports. As an Australian kid growing up in the 1980s my winter sport choices were pretty much rugby league (i.e. the NRL) or Australian rules (AFL). I chose rugby league and as such the NRL has always been one of the first competitions I look at for analysing and developing new algorithms.
The current iteration of my NRL ranking algorithm(s) is one of my best, and when I used it to guide betting decisions it has helped me achieve a fantastic return on investment.
Current NRL Ranks
Historical NRL Ranks