This page explains how Girish Siddaganganna (USATT# 270131)'s rating went from 428 to 425 at the Fremont Table Tennis Academy League event from 12 Sep 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.