Board Thread:News and Announcements/@comment-25646419-20170606001054/@comment-25646419-20170607010421

@Rubik - After seeing your comment on ShadowBeatz video, I do not think I should answer that. :P

Pasting a quote in regards to how Elo is handled:

We take your teams average ELO vs your "Opponents" ELO.

For example, say you are playing as town:

"Town's ELO Average" vs "Mafia + Arsonist + SK + Witch + Executioner"

We then apply the ELO algorithm to determine the weight of the change. This is what was fixed. Our implementation had a miscalculation. https://en.wikipedia.org/wiki/Elo_rating_system

We use a fixed K-factor of 25. So +/- 25 is the theoretical max you should win/lose.

HOWEVER

We then take that result and apply a modifier based on what role you played and how often it tends to win/lose. So in the above example, if the Town Won, the Mafia, and SK would lose different amounts of ELO because SK tends to lose more often than Mafia.

Because of this the most you can win or lose is much less than 25. (except when we screw up the vampire). It's more like ~12

Finally, we've found 0 elo change to be lame, so you will always win/lose a minimum of 1 ELO.

Note: We will most likely be refining this further in the ranked update coming this summer. This may or may not include a staggered K-factor so the higher rankings don't have as large a swing. We're still refining what we want to do.

This quote was taken from here: http://www.blankmediagames.com/phpbb/viewtopic.php?f=11&t=68507#p2204532