This page explains how Charlie Slater (USATT# 49802)'s rating went from 1459 to 1429 at the Westchester 2013 January Open held on - 27 Jan 2013. 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.