This page explains how Ihsan Simms (USATT# 221693)'s rating went from 1266 to 1255 at the Austin Table Tennis League event from 17 May 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.