This page explains how Zhen Jia (USATT# 83670)'s rating went from 1940 to 1918 at the Central Carolinas Super League event from 16 Sep 2010. 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.