This page explains how Parvinder Singh (USATT# 1173378)'s rating went from 1983 to 1956 at the BTTC League event from 28 Jun 2022. 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.