This page explains how Thomas Sawner (USATT# 71226)'s rating went from 1865 to 1893 at the Club Joola Summer Open held on - 14 Aug 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.