This page explains how David W. Jones (USATT# 6133)'s rating went from 1397 to 1331 at the Texas State Closed Championships held on - 14 Nov 2015. 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.