CF Local Predictor

by machine.solution353@gmail.com · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Local Codeforces rating predictor. Developed by Machine Solution

Users

142

+31 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#74K

#62K among extensions

Version

1.9.0

updated 29 Aug 2026

Users

monthly, 5 months

Latest, 16 Oct 2026: 142 usersMove the mouse over the chart for any month

Ratings count

monthly, 5 months

Latest, 16 Oct 2026: 2 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About CF Local Predictor

CF Local Predictor adds local rating predictions directly to Codeforces standings pages. Features: • Local rating prediction without external servers • Predicted rating delta column (Δ) • Predicted title transition column (↕) • Full official standings calculation through the Codeforces API • Lightweight UI integrated into the native Codeforces standings style • Works on finished and active contests The extension performs all prediction calculations locally in the browser and does not collect or transmit personal data.