This page explains how Cherry Zheng (USATT# 77612)'s rating went from 1779 to 1987 at the 2012 Pacific Rim Open held on - 4 Nov 2012. 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.