CF-Predictor是Codeforces的估分插件，可以按照实时排名来估计分数增减（因为运行会比较慢，所以点击后要多等一会才会出分），这样就可以在分数没出的时候预估分数

This extension predicts rating changes for Codeforces. It shows approximate deltas during and after the contest.
A huge number of your nerve cells die every time when you wait for a rating update on Codeforces. Stop this! From now you could use this extension, it partly modifies the contest standings page and shows approximate rating changes for every contestant.

CF-Predictor插件下载

版本：1.2.4
上次更新日期：2019年3月24日