marcinjakubowski / chess-com-division-tracker

Chess.com Division Tracker using Python, Postgres and dbt

Chess.com Division Tracker

This project was built to support IM Damian Lewtak while playing in chess.com Champion league.

Components

Project consists of three components, based around a PostgreSQL database.

Data load

Python modules supporting data loads from chess.com public and not-so-public APIs, in the code directory (with their own README).

Following chess.com data is fetched:

• league standings (ranking & score)
• list of games played for users of interest

Additionally, a helper script to export processed standing data from the database into a Google Sheet was implemented to facilitate the fact Google Data Studio supports a 15 minute refresh interval on top of GSheet data, compared to 1 hour off a Postgres database.

Database model

dbt™ database model transforming the raw data and calculating measures to support Google Data Studio dashboard.

Following functionalities are implemented on top of standing data:

• rounds timestamps to the nearest minute
• calculates score delta over 1 hour, 1 day and 2 days
• calculates player downtime

Following functionalities are implemented on top of player games data:

• determine division player's and their oppontent's color, ranking, result
• calculate longest win streaks for players participating in the division

Dashboard

Dashboard - data as of Feb 12th, 20:50 CET, frozen in time.

Google Data Studio based dashboard using two data sources:

1. Standings - Google Sheet with data exported from the database
2. Games played - directly from database