This page explains how Jason Liang (USATT# 84890)'s rating went from 1371 to 1321 at the 3rd AMDT San Francisco Open Table Tennis Chanpionships held on - 11 Mar 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.