This page explains how Yangui Tao (USATT# 34560)'s rating went from 1234 to 1283 at the Ping Pong Dojo event from 24 Feb 2011. 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.