Stable signalUnknownLow-risk permissions
CF-Predictor icon

CF-Predictor

This extension predicts rating changes for Codeforces. It shows approximate deltas during and after the contest.

Users50KCurrent public install base
Rating4.1Store average score
Reviews171Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview

CF-Predictor Media preview

1 assets
Trend

User growth trend

Review user movement across collected snapshots.

User Growth Over Time

50K50K50K50K50K2026年7月14日2026年7月17日2026年7月20日Latest: 50K
Rating trend

7-day rating trend

View collected rating snapshots from the latest 7-day window to assess rating stability.

7-day rating change

Start
4.09
Latest
4.09
7-day rating change
0.00
3.994.044.094.144.192026年7月14日2026年7月17日2026年7月20日Latest: 4.09
2026年7月14日2026年7月20日
Growth overview

Daily, weekly, and monthly growth

Compare 1-day, 7-day, and 30-day net growth and growth rate.

1-day growthFlat
00%
7-day growthFlat
00%
30-day growthFlat
00%
Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version1.3.2
ManifestV3
Size84.96KiB
Languages1English
Published
Store updated
Last crawled
English
Overview

Product summary

Review the store description, core capabilities, and common use cases.

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.

Reviews

Recent review snapshot

Inspect the latest comments and rating distribution.

Store average score4.1Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average3.6Average computed only from synced review bodies below
Reviews with text78Synced review bodies
Total ratings / reviews171Chrome Web Store public rating/review count

Store average score: 4.1. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

5
42
4
7
3
1
2
9
1
19
Shurong Wang2017年11月18日
5

I like it! No more waiting for the result!

Language en
2 helpful · 0 not helpful
Yuriy Kalichun2017年10月23日
5

Oh,this thing is so helpful!

Language en
1 helpful · 0 not helpful
Junghoon Noh2017年7月30日
4

Working very accurately, but the delta row doesn't show from time to time.

Language en
Anoop Chandu Kunisetty2017年7月24日
5

Working very accurately :):)

Language en
1 helpful · 1 not helpful
Vivek Reddy2017年6月27日
2

It's not working for div 2

Language en
2 helpful · 2 not helpful
Deepak Thukral2017年5月14日
5

Perfect and accurate :)

Language en
6 helpful · 1 not helpful
Palash Taneja2017年2月26日
5

Essential for Codeforces.

Language en
1 helpful · 0 not helpful
W2017年2月26日
5

The CF-Predictor is a must for anyone who uses the Standings page and can't wait for the ratings change. It is very accurate too and has a decent refresh rate.

Language en
2 helpful · 0 not helpful