I have created a Codechef Rating Predictor with UI and options to filter it by Institution and Country and Username.
Simply go to https://crp.databread.xyz and find the list of running contests to choose from.
Also, you can open it directly from the Codechef Ranking page. Simply replace codechef.com/ with crp.databread.xyz?
For Example : If contest Link is : https://www.codechef.com/rankings/APRIL18A?filterBy=Institution%3DIndian%20Institute%20of%20Technology%20Delhi&order=asc&sortBy=rank
Then Predicted Ratings are present at : https://crp.databread.xyz?rankings/APRIL18A?filterBy=Institution%3DIndian%20Institute%20of%20Technology%20Delhi&order=asc&sortBy=rank
Kindly let me know if there are any bugs.
**Github Link : https://github.com/Shraeyas/Codechef-Rating-Predictor**
Hope you like it.