This page explains how Alex Uganski (USATT# 81971)'s rating went from 1721 to 1685 at the 81st Michigan Closed Table Tennis Championships held on - 3 May 2015. 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.