This page explains how Ling Fan (USATT# 73523)'s rating went from 1978 to 1969 at the Central Carolinas Super League event from 19 Oct 2012. 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.