This page explains how Naveen Vaddadi (USATT# 90261)'s rating went from 1550 to 1541 at the 2013 Washington Table Tennis Open Tournament held on - 29 Jun 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.