Attached is a photo of another game where we were comparable rated and my opponent lost 67 points. In this game, I did however gain 8 points. I just do not understand why the great disparity in points when we are equally matched.
why did my rating not change
This happened another time and I clicked off before realizing it. I thought perhaps I played someone with much higher rating. This time we were both around 1,100 rating on 10 minute game. After check mate, they dropped to 1,029 but my rating stayed at 1,085.
Normally when I play each game increases or decreases by 7 or 8 points depending if the rating is close. Just curious. Sorry if this has been asked before.
You only had one game where it looks like your rating didn't change today, but that was a loss, and due to a recent rating refund.
That was the fifth rapid game for your opponent so the rating change was huge compared to players with stable ratings
https://support.chess.com/en/articles/8566476-how-do-ratings-work-on-chess-com
What @MrChatty posted is correct. A deeper explanation is in that article.
This happened another time and I clicked off before realizing it. I thought perhaps I played someone with much higher rating. This time we were both around 1,100 rating on 10 minute game. After check mate, they dropped to 1,029 but my rating stayed at 1,085.
Normally when I play each game increases or decreases by 7 or 8 points depending if the rating is close. Just curious. Sorry if this has been asked before.