Alternative systems to the ELO?

I remember reading a few years ago that a mathematician had put forward an alternative system to the ELO, but I don’t remember much more about it. Does anyone know of any systems which are put forward as better than ELO?

Hey! Let’s get some context here! ding ding:slight_smile:

What’s the ELO? All I know those letters as is the old band, Electric Light Orchestra.

ELO Rating System -> Elo rating system - Wikipedia

Interesting. I’d never heard of the Elo system before.