This page explains how Kelvin Lee (USATT# 216968)'s rating went from 1188 to 1186 at the Experior Club League event from 9 Jul 2017. 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.