This page explains how Edgar S. S. Galicha (USATT# 32500)'s rating went from 1963 to 1927 at the PTTC Saturday League event from 3 Aug 2014. 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.