This page explains how Gurucharan Vidhyashankar (USATT# 279129)'s rating went from 69 to 62 at the PTTC Saturday League event from 18 Nov 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.