How chess.com calculate ratings?

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Avatar of tactical65

where can I find the mathematical formula chess.com uses for ratings when won or lost or draw etc?  All I find are disussions arguing about USCF ratings compared to chess.com. Does the formula also award more for a checkmate win or take away more if mated vs resigning?

Tactical 65

Avatar of notmtwain
tactical65 wrote: can I find the mathematical formula chess.com uses for ratings when won or lost or draw etc?  All I find are disussions arguing about USCF ratings compared to chess.com. Does the formula also award more for a checkmate win or take away more if mated vs resigning?

Tactical 65

https://support.chess.com/article/210-how-do-ratings-work-on-chess-com

Avatar of notmtwain

Of course, if you play unrated games, your rating doesn't change at all.

Most of your recent games have evidently been unrated.