This page explains how Zili Wang (USATT# 86064)'s rating went from 1582 to 1580 at the Fremont Table Tennis Academy League event from 5 May 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.