This page explains how Yahao Zhang (USATT# 31038)'s rating went from 2534 to 2523 at the Texas Wesleyan Open held on - 2 May 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.