This page explains how David Ovrutsky (USATT# 138432)'s rating went from 1438 to 1413 at the Central Carolinas Super League event from 13 Jan 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.