This page explains how Ronald Kauffman (USATT# 78336)'s rating went from 1320 to 1319 at the Central Carolinas Super League event from 17 Apr 2011. 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.