The ELO system is a method for comparing the relative strength of teams. The higher the ELO rating, the better the team. The difference in two teams’ ELO ratings can be used to estimate the likelihood of each team winning. ELO only uses the final score, the location of the game, and the date of the game, and it does factor in some season-to-season carryover. To reiterate, this is not a ranking based on past performance, but an attempt to sort teams based on “current” strength. Consider these ratings in beta for the time being.

We also posted a detailed write up of the methodology.
The ELO system is a method for comparing the relative strength of teams. The higher the ELO rating, the better the team. The difference in two teams’ ELO ratings can be used to estimate the likelihood of each team winning. ELO only uses the final score, the location of the game, and the date of the game, and it does factor in some season-to-season carryover. To reiterate, this is not a ranking based on past performance, but an attempt to sort teams based on “current” strength. Consider these ratings in beta for the time being.

We also posted a detailed write up of the methodology.
Last Updated: Mar 11, 2020 19:55 ET