This page explains how Preron Chakrabarty (USATT# 281559)'s rating went from 75 to 78 at the PTTC Saturday League event from 2 Dec 2023. The links below take you to pages that describe various aspects of the rating processor.

The rating processor goes through 4 passes in order. The links take you to pages that provide detailed explanations of the calculations during each of the 4 passes.