This page explains how Zhen Jia (USATT# 83670)'s rating went from 2144 to 2092 at the Butterfly Teams Championships held on - 1 Sep 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.