This page explains how Nandhakumar Venkatachalam (USATT# 98264)'s rating went from 1889 to 1849 at the WCTTA Saturday League event from 23 Jan 2016. 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.