This page explains how Mei-Mei Ma (USATT# 6634)'s rating went from 1159 to 1134 at the State Games of North Carolina held on - 26 Jun 1994. 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.