This page explains how Brian Doherty (USATT# 81487)'s rating went from 1216 to 1171 at the Austin Table Tennis League event from 16 Aug 2023. 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.