Elo ratings in the #NRL

Each week, I monitor the NRL in Australia and await eagerly Pythago NRL’s (link) update of NRL Elo Ratings (link).

I am fascinated that the author is able to call upon Archimedes and Eratosthenes to help with the ratings (link).

I use RStudio to help visualise the data each week. My week 9 example using ggplot2 and ggrepel is:

Pythago NRL gives me a great opportunity to track which teams are performing well. I am delighted that the system uses Elo ratings. I find the use of median profiles particularly helpful too.