Ladder / Elo Rating

Hi,

I just installed the plugin and until so far it looks great.
What I am trying to achieve, is to setup a Ladder competition where players can challenge eachother and a win/loss would affect their “rating” based on some sort of ELO system.

1: Is a ladder system possible within this plugin?
2: Is it possible to have a player have +/- points based on the rating of their opponent?

Thanks!

https://www.ads-software.com/plugins/sportspress/