This page explains how Hao Li (USATT# 131129)'s rating went from 1117 to 1609 at the Pong Planet Friday Night, Tuesday Night, And Saturday Leagues event from 22 Dec 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.