This page explains how THOMAS YOST (USATT# 14987)'s rating went from 2157 to 2156 at the 2013 CTTC/Newgy Summer Giant RR Open held on - 17 Aug 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.