This page explains how Shing-Li Sung (USATT# 30198)'s rating went from 2134 to 2125 at the ICC - Advanced League event from 30 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.