This page explains how Zhen Jia (USATT# 83670)'s rating went from 2145 to 2124 at the Central Carolinas Super League event from 7 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.