This page explains how Sharath Bellulli Amarnath (USATT# 97005)'s rating went from 1820 to 1812 at the Swan Sunday League event from 7 Jan 2018. 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.