This page explains how Bruce Eichman (USATT# 82177)'s rating went from 1300 to 1250 at the San Antonio Table Tennis League event from 21 Oct 2021. 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.