This page explains how Jia-Yu Sung (USATT# 82230)'s rating went from 1169 to 1152 at the Intermediate League event from 25 Oct 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.