This page explains how Jyoti Ghosh (USATT# 92815)'s rating went from 1217 to 1201 at the Austin Table Tennis League event from 20 Jul 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.